What to Do When Rose Leaves Develop Black Spots? Three Methods to Teach You Prevention and Control
Rose black spot disease is a common disease, with the affected parts being mainly the leaves, followed by the petioles, leaf tips, young tender branches and pedicels. This disease causes the leaves to turn yellow and fall early; when the disease is severe in April and May in summer and in late summer in August and September, the leaves can all fall off completely.
People who like growing flowers have probably all heard of this kind of disease: when a plant contracts it, many black spots grow on its leaves and branches, which not only affects its appearance but also poses a great threat to the plant's life. And there is one kind of plant that is relatively prone to this disease, namely the rose, because of certain of its characteristics, black spot has become an important cause of death for this plant. So, how should this disease be prevented and controlled?
1. Promptly sweep away fallen leaves and cut off leaves that have already become diseased
If friends already have plants at home that have contracted this disease, then they need to clear away the fallen leaves every day, and cut off the diseased leaves, otherwise the other plants will catch this disease. In addition, around December, all the diseased branches and stems must be cut off, otherwise when it comes time to sprout new shoots it will be very troublesome.
2. Increase the distance between plants when planting
If you want to nip the source in the bud before this disease even appears, you must calculate the spacing well when planting, and the distance between each plant must not be too short. If friends are growing the plants in pots, then space the flower pots farther apart, and put something underneath them, do not place them directly on the ground.
3. Ventilation and changing the soil are very important
Friends should usually be careful not to keep the plants stifled; they should be placed in a place with good ventilation, such as a balcony or in the yard, so that the pathogens have no environment in which to survive. In addition, the soil in the pot should also be changed about every six months; you cannot keep using the same pot of soil all the time.
These three methods can all play a role in prevention and control, and are very useful against a disease like black spot.
[Rose] Rose pictures | How to grow roses | Cultivation of roses | Effects and functions of roses
The rose has the beautiful reputation of "Queen of Flowers", and its other name is "Yueyuehong"; the rose is also one of the flowers that every person who loves beauty and loves flowers plants. Regarding the planting of roses, the growing methods of roses, the effects and functions of roses, the characteristics of roses, and so on - shouldn't we learn more about rose knowledge!
[Plant Profile]
Chinese name:Rose
Scientific name:R. chinensis
Aliases:Yueyuehong, Changchun flower
Family:Rosaceae
Genus:Rosa
Product distribution:Widely distributed throughout the world
Morphological characteristics:It is a deciduous shrub or evergreen shrub species, blooming in all four seasons, with green branchlets, dark green leaves, and flowers mainly red in color, occasionally with white, making it the most beautiful ornamental flowering plant in the country. The leaflets are generally 3 to 5, broadly ovate (elliptical) or ovate-oblong, 2.5 to 6 cm long, with a gradually pointed tip, with sharp teeth, and serrated leaf margins, hairless and smooth on both sides; the stipules are fused with the petiole, entire or with glandular teeth, with the tip separated into an ear shape.
[Cultivation and Growing Methods of Roses]
Looking at the beautiful and charming rose, actually cultivating and growing it is not so easy; growing roses requires our wholehearted dedication and care to cultivate the best roses.
1、Roses like an environment with ample sunlight, air circulation, and shelter from the wind; remember not to grow them in a shady environment; the soil should be loose, fertile, well-drained neutral soil.
2、Reasonable pruning is the key to the rose's flowering period. At present, the rose's main sprouting positions are in two places: 1 to 5 leaves below the flower; 6 to 9 leaves below the flower; for potted roses and cut-flower roses, calculate the flower use date well, and about 45 days before using the flowers, carry out comprehensive branch pruning. Understanding the sprouting characteristics of roses can better help you cultivate roses.
3、Fertilization techniques; good fertilization techniques can make your roses grow faster, better, and more vigorously.
☆ When the plant has been pruned and the new generation of buds does not sprout, use 0.2% urea for foliar spraying once every 5 or 6 days, which can promote new bud germination;
☆ If the plant grows quickly and new branches grow rapidly, exceeding the planned range, controlling the water supply can slow growth. During the water control process, after the branches and leaves wilt, spray water promptly; recovery within 1 hour is the critical threshold.
☆ If the new branches show buds later than planned, at this time use 0.2% potassium dihydrogen phosphate for foliar spraying once every 5 or 6 days, and the flower buds will grow rapidly. The rose's flowering period consumes a large amount of water and internal nutrients, so the water supply must be sufficient.
4、The propagation methods of roses mainly include two methods: cuttings and grafting: the best time for cuttings is in late May after the first flowers have bloomed, using semi-ripe wood cuttings, or in late October using hardwood cuttings; grafting buds can be done from June to August. Cleft grafting can be carried out at the beginning of bud break; the time of bud break varies with climate in different regions, so pay attention to seizing the opportunity. Soft-tip grafting is carried out during the growing season; after the rootstock sends out a new shoot, cut the new shoot 3-6 cm from the old cane and perform cleft grafting, and the scion also uses a soft tip, whose thickness should match that of the rootstock.
5、In the process of growing roses, the prevention and treatment of diseases must not be neglected. Below are several very common rose diseases and prevention and control measures.
◆ Black spot: mainly attacks leaves, petioles and tender tips. When the leaves first become diseased, purple-brown to brown small spots appear on the upper surface, and after expanding they are mostly round or irregular dark brown lesions. You can spray drugs such as carbendazim, thiophanate-methyl, and daconil.
◆ Powdery mildew: attacks tender leaves, with white powdery substances appearing on both sides. Early symptoms are not obvious. After the white powdery layer appears for 3-5 days, the leaves become water-soaked, gradually lose green and turn yellow, and when severely damaged cause the leaves to fall off. During the onset period, spraying carbendazim or triadimefon is sufficient, but Guoguang Yingna has the best effect.
◆ Leaf blight: mostly invades from the leaf tip or leaf margin, initially as small yellow spots, then rapidly expands inward into irregular large lesions; severely affected whole leaves wither up to 2/3, the diseased parts fade green and turn yellow, then dry up, turn brown and fall off. To prevent and control the above diseases, in addition to strengthening fertilizer and water management, in winter the diseased branches and leaves should be cut off, fallen leaves on the ground cleared away to reduce the initial sources of infection; when the disease occurs, comprehensive prevention and control should be adopted, and fungicides such as carbendazim and thiophanate-methyl should be sprayed.
◆ Diseases should mainly be prevented. During high-temperature, high-humidity or rainy seasons, regularly spray fungicidal drugs. When the seedlings enter the dormant stage, spray lime sulfur mixture for comprehensive sterilization to ensure healthy growth of the seedlings; when the seedlings are vigorous, they themselves resist a certain degree of disease invasion.
[Effects and Functions of Roses]
1、Medicinal value of roses
★ The rose is a common good medicine in gynecology. In traditional Chinese medicine, the rose is sweet in taste, warm in nature, enters the liver meridian, and has the effects of activating blood and regulating menstruation, reducing swelling and detoxifying. Because the rose's effects of removing blood stasis, promoting qi flow, and relieving pain are obvious, it is often used to treat irregular menstruation, dysmenorrhea and other conditions.
★ When the rose is used together with the bitter orange flower, it is an even better prescription for treating menstrual diseases caused by disharmony of qi and blood. Use 15 g each of rose and bitter orange flower, decoct in water and take. The rose emphasizes activating blood, while the bitter orange flower is more inclined to promote qi flow. The two medicines paired together, one qi and one blood, regulate both qi and blood, and their effects of regulating menstruation and activating blood, promoting qi and relieving pain are very good.
2、Dietary and nutritional effects of roses
★ Rose congee: a beauty recipe, a recipe for irregular menstruation.
★ Rose soup: a recipe for activating blood and resolving stasis, a recipe for irregular menstruation, a recipe for dysmenorrhea.
Crispy fried roses: a liver-nourishing recipe, a recipe for activating blood and resolving stasis, irregular menstruation.
[When Do Roses Bloom]
Among domestic flowering plants, the rose's flowering period is a relatively long one. Generally speaking, the rose's flowering period is from May to November; in terms of seasons, from early summer to late autumn is the rose's flowering period.
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Rose R. chinensis Rose illustrated guide: How to grow roses / How to propagate roses
Rose cardRose R. chinensis
Aliases: Yueyuehong, Gengshen rose, Four-season flower, Shengchun, Douxuehong, Yueguihong, Yueguihua, Yueji, Yueyuekai, Yueyuehua, Yanxuehong, Chouchunhua, Yuejigang, Yueguanghua, Tongchuizi, Four-season spring, Shouke
Classification: Shrub flowers
Family and genus: Plantae, Angiosperms, Dicotyledoneae, Rosales, Rosaceae, Rosa
Full bloom period: All four seasons
The rose, called the queen of flowers and also known as "Yueyuehong", belongs to the Rosaceae family. It is an evergreen or semi-evergreen low shrub, blooming in all four seasons, mostly red, occasionally white, and can be used as an ornamental plant or as a medicinal plant; it is also called the rose flower. Its natural flowering period is from May to November; the flowers are large and fragrant, and it is widely used in horticultural cultivation and as cut flowers. The main types of roses include cut-flower roses, edible roses, climbing roses, ground-cover roses, etc. China is one of the places of origin of the rose. It is the city flower of Beijing, Tianjin and other cities. Red cut flowers have even become a must-give gift between lovers, and have become a theme of love poetry. Rose (scientific name: Rosa chin...
How to grow roses and precautions Introduction to roses
The rose, called the queen of flowers and also known as "Yueyuehong", belongs to the Rosaceae family. It is an evergreen or semi-evergreen low shrub, blooming in all four seasons, mostly red, occasionally white, and can be used as an ornamental plant or as a medicinal plant; it is also called the rose flower. Its natural flowering period is from May to November; the flowers are large and fragrant, and it is widely used in horticultural cultivation and as cut flowers. The main types of roses include cut-flower roses, edible roses, climbing roses, ground-cover roses, etc. China is one of the places of origin of the rose. It is the city flower of Beijing, Tianjin and other cities. Red cut flowers have even become a must-give gift between lovers, and have become a theme of love poetry.
Rose (scientific name: Rosa chinensis), also known as Yueyuehong (Jiangsu, Zhejiang), Yueyuehua, Changchun flower (Changchun, Jilin), Gengshen rose, is native to central China in Guizhou, Hubei, Sichuan and other places, and is now found throughout the world. It is the city flower of Fuyang, Beijing, Tianjin, Shijiazhuang, Nanyang, Changzhou, Huai'an, Liuzhou, and the national flower of Iraq, the United States, and Luxembourg.
Its natural flowering period is from May to November; the flowers are large and fragrant, and it is widely used in horticultural cultivation and as cut flowers. The main types of roses include cut-flower roses, edible roses, climbing roses, ground-cover roses, etc. China is one of the places of origin of the rose. It is the city flower of Beijing, Tianjin, Wuhu, Handan, Shijiazhuang and other cities. Red cut flowers have even become one of the must-give gifts between lovers, and have become a theme of love poetry. Roses have relatively good antifungal activity and synergistic activity against drug-resistant fungi.
Morphological characteristics of the rose
The rose is a deciduous shrub or evergreen shrub, or a trailing and climbing vine plant. The stem is brownish-green, with hooked prickles or without prickles, but there are also roses with almost no prickles. The branchlets are green, and the leaves are dark green, alternate, odd-pinnately compound; the leaflets are generally 3 to 5, broadly ovate (elliptical) or ovate-oblong, 2.5 to 6 cm long, with a gradually pointed tip, with sharp teeth, and serrated leaf margins, hairless and smooth on both sides; the stipules are fused with the petiole, entire or with glandular teeth, with the tip separated into an ear shape.
The flowers grow at the top of the branches, the flowers are often clustered, rarely solitary, with many flower colors and various shades, 4 to 5 cm in diameter, mostly double-petaled but also single-petaled; the sepals are tail-like and long-pointed, with pinnate lobes on the margins; the styles are separate, extending out of the mouth of the hypanthium, and equal in length to the stamens; each ovary has 1 ovule. It has the fine reputation of being the queen of flowers. The flowers have a slight fragrance, with a flowering period from April to October (northern regions), from March to November (southern regions), blooming most in spring, and most are complete flowers, or bisexual flowers. The fleshy rose hips, after ripening, are red-yellow, splitting open at the top, and the "seeds" are achenes, chestnut brown. The fruit is ovoid or pear-shaped, 1 to 2 cm long, with the sepals falling off.
1. Flowers: The flowers grow at the top of the stem, solitary or clustered. There are distinctions of single-petaled, semi-double and double; the flower colors are rich and the flower forms are diverse.
2. Fruit: The rose's fruit is spherical or pear-shaped, green before ripening, and orange-red when ripe. It contains 5 to 14 bony achenes (seeds).
3. Seeds: The outer layer of the rose seed is the pericarp. The pericarp has an inner and an outer layer; the outer layer is a bony layer and is very hard; the inner layer is a fibrous layer, with fibers interwoven lengthwise and crosswise, very tough. The seed coat is a very thin membranous layer, tightly wrapping the embryo. There is a certain gap between the pericarp and the seed coat.
4. Leaves: Odd-pinnately compound leaves; 3 to 7 leaflets, ovate or oblong; the leaf margins are serrated. [1] Most varieties have smooth and glossy leaf surfaces (some varieties are rough and lusterless); most varieties are purplish-red when the leaves first unfold, then gradually turn green.
5. Stem: The rose's primary stem is purplish-red, the young stem is green, and the old stem is grayish-brown; sharp and stiff prickles grow on the stem, and the density of the prickles varies by variety.
6. Roots: The morphology of the rose root system is closely related to the propagation method. Seedlings grown from seed have an obvious main root and strong lateral roots; seedlings propagated by cuttings have only lateral roots, no main root, and the number of lateral roots is relatively small, with relatively poor viability.
Evergreen or semi-evergreen shrub, 1-2 m tall. The stem is upright; the branchlets are spreading, green, hairless, with curved prickles or without prickles. The pinnately compound leaves have 3-5 leaflets, rarely 7, and are 10-15 cm long including the petiole; the leaflets are broadly ovate to ovate-elliptic, 2.5-6 cm long, 1.5-3 cm wide, with an acute or gradually pointed tip, a rounded or broadly wedge-shaped base, sharply fine-serrated margins, bright green on the surface, hairless on both sides; the terminal leaflet has a long petiole, the lateral leaflets have shorter petiolules, and the petiole and rachis have sparse glandular hairs and fine prickles; the stipule margins have eyelash-like glandular hairs or pinnate lobes, hairless on both sides, and the base is fused with the petiole. The flowers are several, clustered or solitary, about 5 cm in diameter, with pedicels 3-5 cm long, green, often with glandular hairs; the receptacle is nearly spherical, the sepal lobes are triangular-ovate, with a tail-like pointed tip, entire or pinnately divided, hairless on the outside, and covered with short down on the inside and margins; the petals are double, deep red, pink, rarely white; the stamens are numerous; the styles are free, and the ovary is covered with soft hairs. The rose hip is spherical, yellow-red, 1.5-2 cm in diameter, with the sepal lobes persistent. In the north, April to October; in the south, March to November.
The rose is a deciduous shrub or evergreen shrub, or a trailing and climbing vine plant. The stem is brownish-green, with hooked prickles or without prickles, but there are also roses with almost no prickles. The branchlets are green, and the leaves are dark green, alternate, odd-pinnately compound; the leaflets are generally 3 to 5, broadly ovate (elliptical) or ovate-oblong, 2.5 to 6 cm long, with a gradually pointed tip, with sharp teeth, and serrated leaf margins, hairless and smooth on both sides; the stipules are fused with the petiole, entire or with glandular teeth, with the tip separated into an ear shape.
The flowers grow at the top of the branches, the flowers are often clustered, rarely solitary, with many flower colors and various shades, 4 to 5 cm in diameter, mostly double-petaled but also single-petaled; the sepals are tail-like and long-pointed, with pinnate lobes on the margins; the styles are separate, extending out of the mouth of the hypanthium, and equal in length to the stamens; each ovary has 1 ovule. It has the fine reputation of being the queen of flowers. The flowers have a slight fragrance, with a flowering period from April to October (northern regions), from March to November (southern regions), blooming most in spring, and most are complete flowers, or bisexual flowers. The fleshy rose hips, after ripening, are red-yellow, splitting open at the top, and the "seeds" are achenes, chestnut brown; the fruit is ovoid or pear-shaped, 1 to 2 cm long, with the sepals falling off.
Ecological habits of the rose
It has strong adaptability, is cold-tolerant and drought-tolerant, and has no strict requirements for soil, but it is best in slightly acidic sandy loam rich in organic matter and well-drained. The potting soil should be loose, the pot diameter appropriate, the moisture moderate, with light fertilizer applied frequently, flowers picked and branches pruned, pests and diseases prevented and controlled, and the pot changed every year. It likes sunlight, but too much direct strong light is unfavorable to flower bud development, and the petals are prone to scorching; it likes warmth, and generally a temperature of 22 to 25°C is the most suitable temperature for flower growth; high summer temperatures are unfavorable to flowering.
It needs an environment with ample sunlight, air circulation, good drainage and shelter from the wind, and needs appropriate shading in midsummer. The optimum temperature for most varieties is 15 to 26°C during the day and 10 to 15°C at night. It is relatively cold-tolerant, and enters dormancy when the winter temperature is below 5°C. If the summer high temperature continues above 30°C, then most varieties bloom less, quality decreases, and they enter a semi-dormant state.
General varieties can tolerate a low temperature of -15°C. It requires fertile, loose, slightly acidic soil rich in organic matter, but its range of adaptability to soil is relatively wide. The relative air humidity should preferably be 75% to 80%, but slightly drier or slightly wetter is also acceptable. It has the characteristic of continuous flowering. It needs to maintain air circulation and be free of pollution; if ventilation is poor, powdery mildew is likely to occur, and harmful gases in the air, such as sulfur dioxide, chlorine, fluorides, etc., are all toxic to roses.
Distribution region of the rose
China is one of the places of origin of the rose. Modern roses have extremely complex blood relationships.
The rose is the city flower of Zhengzhou, Beijing, Tianjin, Nanyang, Dalian, Changzhi, Yuncheng, Bengbu, Jiaozuo, Putian, Qingdao, Weifang, Wuhu, Shijiazhuang, Handan, Xingtai, Langfang, Shangqiu, Luohe, Anqing, Ji'an, Huai'an, Huaibei, Huainan, Jiaonan, Nanchang, Yichang, Xuchang, Changzhou, Taizhou, Cangzhou, Suzhou, Hengyang, Shaoyang, Fuyang, Xinyang, Deyang, Tianshui, Dongtai and other cities. Among them, Laizhou City and Shiqiao Town in Nanyang City are the "hometowns of roses", and Shuyang, Jiangsu is the largest rose production base in East China. Among them, the roses produced in Laizhou, Shandong, Shuyang, Jiangsu, and Nanyang, Henan are famous at home and abroad.
Cultivation techniques of roses: Flowering period control
The rose is also called "Yueyuehong", with a natural flowering period from May to November, blooming continuously. However, controlling the rose's flowering period during the Olympics is still very important, especially for potted roses and cut-flower roses, the flowering period must be well controlled in order to successfully complete the temporary flower display tasks at various venues and gymnasium sites during the Olympics and the fresh cut flower supply tasks.
In actual work, analyze specific situations concretely. For field-grown roses, according to their geographical location, while ensuring continuous flowering, let them bloom more and bloom well from August 8 to 24. The following methods are for reference: around June 20, prune all spent flowers and some already fully bloomed flowering branches of field-grown roses at a 50% ratio, cutting to the round bud position at the mature middle part of the flowering branch, and their flowering ornamental period is about August 1 to 15; around June 30, prune all spent flowers and all flowering branches after full bloom by the above method, and their flowering ornamental period is about August 10 to 25; after June 30, prune spent flowers at any time, letting them bloom naturally. For potted roses and cut-flower roses, calculate the flower use date well, and about 45 days before using the flowers, carry out comprehensive branch pruning.
Fertilizer and water management. In the pruning under the above various situations, scientific fertilizer and water management should be carried out in combination with the plant's growth condition. When the plant has been pruned and the new generation of buds does not sprout, use 0.2% urea for foliar spraying once every 5 or 6 days, which can promote new bud germination; if the plant grows quickly and new branches grow rapidly, exceeding the planned range, controlling the water supply can slow growth. During the water control process, after the branches and leaves wilt, spray water promptly; recovery within 1 hour is the critical threshold. Water is the carrier of various enzymes in the plant body; if the water supply is insufficient, enzyme activity decreases, metabolism slows down, and thus plant growth slows down. If the new branches show buds later than planned, at this time use 0.2% potassium dihydrogen phosphate for foliar spraying once every 5 or 6 days, and the flower buds will grow rapidly. The rose's flowering period consumes a large amount of water and internal nutrients, so the water supply must be sufficient.
Flowering conditions
1. Sunlight must be long. The place where roses are planted must be both ventilated and able to receive more than half a day of sunlight. This is the primary condition for it to bloom profusely like brocade. If placed in a half-shade half-sun place or a shady place with insufficient light, it can at most bloom only in spring and autumn in a year. Therefore, families whose living conditions cannot meet the light requirements had best not grow roses and instead grow relatively shade-loving flowers and plants.
2. Prune often. Although the sunlight conditions are good, if not pruned for a long time, the rose will also not grow well. The pruning method is: after December each year when the rose leaves fall, carry out one pruning, leaving branches about 15 cm high, with the pruning position about 1 cm above an outward-extending leaf bud, and at the same time remove side branches, diseased branches and concentric branches. After May, each time it finishes blooming, cut off 2/3 or 1/2 of the branch that has bloomed, so that there will be more opportunities for regenerated flower buds. If you want the flowers to bloom large, you can also remove part of them when there are many flower buds, which can both concentrate nutrients and achieve the purpose of prolonging the flowering period and opening in batches.
3. Fertilize frequently and promptly. Generally, for newly planted or transplanted potted roses, loose loess with humus can be used for cultivation; it is best to mix in 1/4 rice husk ash or a little broad bean shell, bean cake or chicken and pigeon manure, etc., so that the rose can continuously absorb various nutrients such as nitrogen, phosphorus and potassium from the soil. If an old potted rose needs to be repotted, basal fertilizer can also be applied as in the above method; if not repotting, you can scrape open 2-3 cm of the soil surface and bank in some fresh fish intestines or chicken and pigeon manure, bean cake crumbs, etc. as basal fertilizer. This is best done in January to February when the rose is dormant. In this way, the fertilizer will gradually ferment into fertilizer liquid and seep into the roots with rain or watering, achieving good results. After May is the rose's peak growing season; every 10 days, apply topdressing once; you can use fully fermented fishy liquid or vegetable leaf liquid, mixed in a ratio of 3 parts fertilizer to 7 parts water and applied, and stop fertilizing in November. If you can do as required above, you can make the rose's fresh flowers meet you every month. The rose is by nature averse to heat; it grows best at a temperature of 20 to 25°C; above 30 degrees it grows with difficulty. If you master fertilization well, you can overcome its weakness of fearing high temperatures in summer.
4. Repotting. Roses do not need to be repotted or turned out every year; if it is moving from a small pot to a large pot, it can be done in any of the four seasons.
Early spring management
In early spring, the rose's roots begin to spread in the soil. At this time the most important nurturing work is pruning.
In warm regions, in late February; in colder northern regions, pruning work should be carried out in March to April. Pruning is roughly cutting off about 1/3 of the plant height, first removing weak branches, diseased branches and dead branches. The new branches the plant sent out in 2011 are the most vigorous; choose such main branches and keep 2 to 3, at most 5; according to the plant's original growth condition, generally at about 50 cm from the ground, prune with branch shears at a position 1 cm above a robust bud. So-called robust buds are buds that have not yet sprouted, are plump, and have already bulged. In order not to let the buds grow into overly dense branches, you should choose and keep robust buds on the outer upper side of the plant. In addition, pruning should be carried out at a plump part of the branch. When pruning with shears, a "click" sound means it is a plump part. If the cut feels soft, cut further down to a hard place. The aging part at the branching node of the plant is rough and has a protruding swelling, with no strong buds at all in between, so it should also be cut off.
The middle part of a 2- to 3-year-old main branch is a place where new buds frequently emerge, so when pruning, only leave 10 to 20 cm. Generally, if you want more flowers in the flowering period, carry out weak pruning. If you want the flowers in the flowering period to bloom well and do not seek many flowers, carry out strong pruning. In addition, for plants with poor growth, you should make up your mind to prune strongly, because such plants have poor root development; if the crown is too large, it is easy to cause insufficient nutrient supply. While pruning, it is best to do one high-concentration disinfection, which has a significant effect on preventing pests and diseases.
To make the pruned branches lean outward, they can be fixed with supports (wooden sticks, etc.), making the tree shape balanced and beautiful, and avoiding branches and leaves rubbing against each other when the wind blows. The branches sent out from the lower buds of the leaning branches are more robust, and the flowers are also luxuriant; attention should be paid to protecting them.
After Awakening of Insects, insects successively wake from hibernation and begin activity. At this time, dissolve 10 mL of fenitrothion (insecticide) and 20 g of wettable sulfur powder used for treating powdery mildew in 10 L of water, and spray the plants with the fully dissolved concentrated solution. Because the rose has not yet grown leaves at this time, there is no need to worry about phytotoxicity.
About 20 days after pruning, the buds begin to sprout. Among them, the weak and small buds are often naturally eliminated during the sprouting process. If you want the flowers to bloom well, you should keep buds according to the thickness of the main branch: keep 3 to 4 buds on thick branches, keep 1 to 2 buds on pencil-thick branches, and remove all the rest. In regions with cold weather, sprouting is later, so the time for removing buds can be postponed.
If basal fertilizer has already been applied in December, no topdressing is needed in early spring; when sprouting, scatter an appropriate amount of chemical fertilizer around the roots to promote budding. After the buds sprout, if the ground surface is dry on sunny days, in order not to let the ground surface freeze, irrigate in the morning or before noon.
Over-summer management
Once the peak flowering period of potted roses has passed, they enter the high-temperature, high-humidity summer, and are mostly in a dormant or semi-dormant state. Strengthening the management of potted roses in summer and carrying out rejuvenation care can break the dormant period and keep them blooming continuously throughout the summer. The main management measures are:
1. Shading and ventilation. Potted roses have limited soil, and in high-temperature weather they are easily heated by the sun and dry out completely, so the roses must be shaded and cooled. It is best from 8 a.m. to 4 p.m. to put the potted flowers under trees in the yard or in a ventilated place under a trellis, so that the potted flowers receive scattered light, creating suitable environmental conditions for the rose to grow and bloom.
2. Apply more fertilizer and water. Roses bloom many times and need a sufficient supply of nutrients and water to ensure vigorous growth. Entering summer, their evaporation and consumption are both large, and they grow rapidly; during the flowering period, apply light fertilizer as topdressing once every 10 days; you can also soak bean cake and poultry manure in water, and after sealed fermentation mix with water as topdressing, making the plant bloom luxuriantly and have lush leaves, breaking the rose's summer dormant state. For watering, it is best to use sun-warmed water to reduce the temperature difference between the potting soil and the water; if too cold water is used, it will stimulate the root system and affect the plant's normal development.
3. Spray water more. Roses enter a semi-dormant state above 33°C, and are most conducive to growth at an average temperature of 20 to 25°C. Therefore, in summer, in addition to appropriate shading, water should also be sprayed more; it is best to spray water once in the morning and once in the afternoon, creating a humid environment and promoting the growth of flowers and leaves.
4. Thinning branches and pruning. After the rose blooms, it should be cut off below the 3rd compound leaf under the flower, to promote the development of sturdy new branches and early budding and flowering. Weak short branches are pruned first and pruned high; robust branches are pruned later and pruned short, to promote the weak and suppress the strong, and promote neat flowering. The pruning length of long branches should not exceed one half, to avoid delayed germination of axillary buds. In addition, it is not suitable to keep too many flowers per crop; for potted roses, 3 to 5 flowers is appropriate. Keeping too many flowers disperses nutrients too much, makes the flowers small, and affects the next crop of flowers.
5. Loosening soil and weeding. While clearing weeds on the pot surface, you can use a fine wire rake to gently break the surface layer around the flower pot, enhancing the looseness and aeration of the potting soil and promoting the normal growth of the root system.
6. Preventing and controlling pests and diseases. The site where flower pots are placed should be frequently sprayed with 15% quicklime water or carbendazim or potassium permanganate aqueous solution for sterilization. July to August, the rainy season with high temperatures, is a high-incidence period for leaf spot and powdery mildew; you can spray 0.3 to 0.5 degrees Baumé lime sulfur mixture, once a week, for a total of 2 to 3 sprays. In June to July, if longhorn beetle larvae are found causing damage, the branch tips should be cut off immediately. For other leaf-eating pests, once discovered, immediately spray 800-fold monocrotophos for control, which can kill eggs and larvae.
Potted cultivation techniques
1. Potting up
This refers to newly bred small seedlings or field-grown roses before sprouting, when seedlings are lifted from large plants, beginning to be planted in pots. For small seedlings grown in coarse sand or water culture, as well as field-grown bare-root seedlings potted up, it is advisable to plant them in plain sandy loam for a period, and after the root system grows sturdy, use fertilized culture soil and place basal fertilizer at the bottom to repot into a pot one size larger for cultivation. For small seedlings rooted in culture soil or small pots from field planting with a soil ball, ordinary culture soil can be used for planting; when potting up, the new pot should first be soaked thoroughly with water, and the old pot washed clean; according to the size of the pot, place 1 cm to 3 cm thick coarse sand at the bottom of the pot as a drainage layer. Then fill part of the soil according to the size of the plant. For bare-root potting, pile the soil in the center of the pot into a small mound, hold the plant upright and straight with the left hand, fill soil with the right hand, and as you fill soil, gently lift the seedling upward, so that the roots hang down at 45°. After planting, firm the soil; for those potted with a root ball, also straighten the root whiskers and plant the plant upright. Small seedlings are generally not restricted by time for potting up; once they survive cultivation, they should be potted up promptly to prevent leggy growth and weakening. Large field-grown plants must be potted up during the dormant period after leaf fall in early winter or before sprouting in early spring, otherwise normal growth and development will be affected, tree vigor will weaken, and it will take a very long time to rejuvenate. When potting up, the soil should be moist and loose; after potting up, do not water thoroughly for the time being, and pay attention to shading and sheltering from the wind; this can not only promote the rapid healing of broken and damaged root whiskers, but also make it easy to rejuvenate and grow vigorously.
2. Repotting (downsizing/upsizing)
According to the plant's growth trend and development needs, remove it whole from a small pot and plant it into a larger pot, including transitioning from plain soil cultivation to culture soil. Repotting is generally not restricted by time; for example, small seedlings potted in a No. 2 pot in spring, if growing vigorously, can be moved to a No. 9 cylindrical pot around July to August. If the plant is even larger, it can be planted in an even larger pot. When removing from the pot, pinch the plant stem with the right index and middle fingers, with the palm pressed tightly against the soil surface, and support the bottom of the pot with the left hand and turn the pot over. For small seedlings, tap the pot edge lightly with the hand; for large pots, hold the pot with both hands and lightly knock the pot rim on a hard place, and the plant can be removed whole. The original potting soil should have been watered in advance; when removing from the pot it must not be too dry or too wet; when repotting, use culture soil for planting; first remove the whole surface layer of soil (the "treasure cover") and the lower drainage layer, then slightly loosen and straighten the fibrous roots coiled around the outside of the root ball, operate gently so as not to break the ball, then place it in the pot, add 20 to 60 g of hoof pieces as basal fertilizer, fill soil and firm it, and after repotting continue normal care.
3. Changing pots
For all kinds of potted roses that have developed into form after two years, in order to keep the plant growing vigorously and the plant shape well-proportioned, each year after leaf fall and before sprouting, combine with pruning to replace the potting soil and apply basal fertilizer. For changing pots, generally still use flower pots of the original specification, without increasing the number. For those stored sealed in soil cellars in winter, after removing the whole ball from the pot, trim the roots; first remove the surface cover of the root ball and the bottom drainage layer, then cut off the overly dense fibrous roots coiled around the outside of the root ball, pay attention to checking and removing rotten roots and root nodules, retain the protective root soil and do not break the ball; the total old potting soil removed should not exceed 1/2, then place it in a cold cellar for temporary planting, and in spring use new soil for potting. For those placed in a cold room or a plastic-film solar cold frame in winter, you can directly change to new soil and plant into the original pot; the key operating points are the same as for repotting. After changing the pot, water once thoroughly, then it can be placed in a cold room or solar cold frame for care.
4. Water and fertilizer
During the growing period, potted roses should be watered in a timely manner and checked for water, always keeping the potting soil moist. In hot and dry seasons, it is advisable to spray water on the leaf surface and the surrounding environment to keep the branches fresh; in cold seasons, control water, but the potting soil must not dry out completely. Fertilization should be based on the fertilizer preferences of different varieties and the needs of each stage of growth and development, as well as temperature, light and growth vigor, applying basal fertilizer or topdressing timely and appropriately.
Pruning techniques
Only by promptly removing spent flowers from roses can the plant concentrate its nutrients, remain strong, and keep blooming without decline. If spent flowers are not removed in time, the axillary buds immediately below them often sprout, forming weak branches. These small branches both consume nutrients and ruin the plant's shape; even if they do bloom, they are mostly deformed or inferior small flowers. In addition, except for flowers from which seeds are to be collected, spent flowers must never be allowed to set seed.
After the first flush of blooms, medium branches should be cut back to a moderate length, keeping 3 to 4 buds on the branch; weak branches should be cut back hard, keeping 1 to 2 buds; strong branches should be pruned lightly, keeping 5 buds, to appropriately restrain growth. The second pruning should be light, cutting only just above the second leaf below the spent flower and keeping the axillary bud of that second leaf, which is a bud with the best advantages in both growth and development and occupies the dominant position on the whole plant; removing this bud will affect the next blooming period, flower quality, and the plant's vigor.
After the Beginning of Autumn, post-bloom pruning (the third flush) uses moderate cutting back, keeping 3 to 4 buds per branch. To keep the plant's shape balanced, you may also cut back down to the branch that bore the previous flush of flowers. Overlapping branches, crossing branches, overly dense branches, and rampant water sprouts should be removed to improve ventilation and light penetration and to keep the plant's shape well proportioned.
At the same time, post-bloom pruning of roses should also be coordinated with flower-timing control. For roses to be displayed on National Day, prune 45 days before flowering, cutting back to keep 3 to 4 buds, after which 2 small branches will sprout from each branch. After pruning, step up fertilization and watering, and guard against waterlogging and powdery mildew; the flowers will open successively in late September.
In addition, pruning can make floribunda roses bloom earlier or later. Light pruning of such roses preserves more mature branches, bringing the plant into bloom two weeks earlier; heavy pruning prompts the plant to produce vigorous branches that flower in autumn, delaying the autumn bloom by two weeks. Therefore, considering the plant as a whole, different pruning treatments can be used to advance or extend the blooming period.
Rose Cultivation Methods and Flower-Promoting Methods
Roses have large flowers and bear many of them, so they need a lot of fertilizer and should be fed generously; apply plenty of organic fertilizer before bud break. For potted roses, repot once in early spring; the potting soil formula is: (loam) 5 : (leaf mold) 2 : (decomposed manure) 2 : (sand) 1, plus a small amount of rapeseed cake, mixed evenly. Thereafter, apply a top dressing every 10 to 15 days. The top dressing can be a liquid fertilizer brewed from cake fertilizer plus phosphate fertilizer, diluted with water and applied; especially after the peak bloom in May, fertilizer should be applied promptly to encourage summer and autumn flowering. [6]
During the growing season, roses should receive full sunlight, with 8 hours of light per day being ideal; if grown indoors for display, move them in before 11 a.m. and move them out before 4 p.m., so they receive the soft light around midday, which helps prolong the flowering time.
Roses enter a semi-dormant state above 33°C, and grow best at an average temperature of 20 to 25°C; therefore, in summer they should be shaded appropriately and misted several times. To lower the temperature and replenish moisture, during the growing season it is best to spray water once in the morning and once in the afternoon to create a humid environment and promote the growth of flowers and leaves.
After a rose blooms, it should be cut below the third compound leaf beneath the flower to encourage strong new branches and early bud formation and blooming. The key points of pruning technique are: cut weak, short branches first and high; cut vigorous branches later and short, so as to boost the weak and restrain the strong and promote uniform blooming. The pruning length of long branches should not exceed 1/2, to avoid delayed sprouting of axillary buds. In addition, too many flowers should not be kept per flush; for potted roses, 3 to 5 flowers is appropriate, while for field-grown roses it depends on the plant's vigor. Keeping too many flowers disperses nutrients too much, making the flowers small and affecting the next flush. [7]
Fresh-Cut Technique
Roses should be cut when the temperature is low and the humidity high. If cut too early, the flowers often do not open normally after cutting. Generally, cutting is done 1 to 2 days before flowering. The cutting time is related to the variety; usually, when 4 to 6 petals have loosened and the bud is opening, it can be cut. Sometimes it is found that cut roses droop prematurely before the buds have opened; this situation is mainly due to cutting too early at the bud stage, when the sepals still tightly wrap the bud. It is best to cut when the sepals form a 90° angle with the petals. When cutting, the branch should have 5 internodes or a somewhat longer length, but there must be at least two buds on the branch. One hour after cutting, insert into water to take up water, then grade by length, tie in bundles of 10 stems, and wrap in cellophane. Cut roses have a short vase life and do not tolerate long-distance transport. If cut roses are not to be sold on the market, they should immediately be put into low-temperature storage; the storage temperature is 1 to 2°C, and it is best to insert them in water for wet storage. The water quality for wet storage is important; a low pH value is beneficial to cut roses. Be careful not to insert the leaves into the water either. The freshness-promoting agent in the holding container is a mixture of silver thiosulfate and aluminum sulfate. Usually, the preservative solution for all rose vase holding is called the Cornell formula solution. To overcome the bent-neck phenomenon in roses, cobalt acetate at a mass fraction of 360×10E-6 can be added to the preservative. In addition, diammonium ethyl carbamoylphosphonate can prevent red cut roses from rotting, deteriorating, and wilting early.
Rose Propagation Methods and Propagation
Mostly cutting propagation is used, but division and layering can also be used. Cuttings can be taken in all four seasons, but hardwood cuttings in winter or autumn are preferable; for softwood cuttings in summer, attention must be paid to water management and temperature control. Otherwise rooting is difficult. Winter cuttings are generally taken in a greenhouse or plastic tunnel; if taken in the open field, measures to increase moisture retention must be taken. Those propagated by sowing are used for sexual hybridization breeding. For a few rare varieties that are difficult to root, grafting is used, with wild rose as the appropriate rootstock, such as the yellow series varieties.
Management
Rose transplanting is done between November and March of the following year; pruning can be done at the same time as transplanting. First cut out dense branches and dead branches, then cut out old and weak branches, keeping 2 to 3 outward-growing buds so the plant spreads in all directions; appropriately shorten particularly strong branches to strengthen the growth of weak branches. In summer, when new branches grow too densely, thin them out; after each flush fades, promptly cut off the upper part of the branch connected to the spent flower so it does not set seed and consume nutrients, and keep the plump middle and lower parts of the branch to encourage early new growth and another round of blooming. Roses like a heavy application of base fertilizer before flowering and a top dressing of quick-acting nitrogen fertilizer after flowering to strengthen the plant and force flowers. Roses have strict water requirements and must not be too wet or too dry; too dry and they wither, too wet and the roots are damaged and leaves fall.
Grafting
Cutting is the main method, with sowing and tissue culture etc. as supplements. Commonly used grafting rootstocks include: wild rose, pink cluster rose, 'Bai Yutang' (rose), etc.
For field-grown roses, choose a wind-sheltered, sunny site with good drainage; besides a heavy application of base fertilizer, top dressings should also be applied during the growing season. Pruning is an important task; besides dormant-season pruning, during the growing season attention should also be paid to bud removal, cutting out spent-flower branches, and removing rootstock suckers. Greenhouse cultivation is mainly aimed at supplying cut flowers, usually planted at a spacing of 30 cm × 30 cm, with night temperatures kept at 15 to 17°C and daytime at 21 to 25°C. Potted roses can be used for indoor display. The key points of their cultivation and management are: loose potting soil, appropriate pot diameter, moderate moisture, light but frequent fertilization, flower removal and branch pruning, pest and disease control, and repotting every year.
Grafting is one of the most widely used methods for propagating roses. Grafting belongs to the category of asexual reproduction; it combines parts of two plants into a single whole that continues to grow as one plant. In the graft combination, the upper part is called the scion, and the part bearing the scion is called the rootstock. Some rose varieties are few in number and have striking flower colors, yet their own-root seedlings have weak root systems and grow extremely slowly; using vigorous rootstocks for grafting makes these rose varieties grow strongly and enhances their disease resistance.
Grafting can also faithfully reflect the various traits of the original variety, with extremely strong heredity and stability. Through practical observation, from the date of grafting to the opening of the first flower, the fastest grafted plant took only 23 days, and some individual plants flowered 1 to 2 days earlier, while most grafted plants generally took about 40 to 45 days to flower. This shows that compared with cuttings, grafting can advance the flowering time.
Taking the Beijing area as an example: on June 15, 2012, grafting and cutting were done on the same day; about 20% of the grafted plants had flowered around July 25, while only about 10% of the cutting seedlings had flowered around September 20 or even later. This shows the advantage of grafting is very strong. Of course, graft propagation is complex to perform and requires high technical skill. The specific issues of graft propagation are explained one by one below.
Factors Affecting Graft Survival
1. Selection of rootstock:
For grafting roses, a suitable grafting rootstock must first be selected. The rootstock not only bears the role of mechanical support and absorption and conduction of water and nutrients, but also controls the plant's function of absorbing organic matter, is responsible for the manufacture of various enzymes and the storage of nutrients, and has a great influence on the various characteristics of the stems, leaves, flowers, and fruits of the upper part of the plant. Of course, the scion in turn also plays an important role in the growth and development of the rootstock's root system. Various experiments have proved that the quality of the rootstock is one of the important factors determining whether ideal grafted rose seedlings can be produced. The rootstocks usually used are roses and their varieties, such as 'Fentuan' rose, 'Manetti' rose, Dutch rose, and Japanese thornless rose, etc. These rose species have well-developed root systems, are cold-resistant and drought-resistant, and have strong compatibility with the grafted varieties and stable heredity.
2. Graft compatibility between rootstock and scion:
Graft compatibility refers to the similarity of the internal tissue structure, genetic and physiological characteristics of the rootstock and scion. Through grafting, the plant can be promoted to heal and survive, and after survival, to be physiologically compatible. The manifestations of weak compatibility and strong compatibility are relatively complex. Generally speaking, the closer the kinship, the stronger the compatibility. Compatibility is strongest between the same variety or the same species. Graft compatibility between different species of the same genus varies by species.
3. The cambium of both rootstock and scion:
The cambium parts of both rootstock and scion must be in close contact over a fairly large area; this is one of the factors for graft survival. Theoretically, complete alignment of the cambium of both rootstock and scion is the ideal grafting result, but in actual operation this is difficult to achieve; one can only strive to achieve the largest possible contact area.
4. Temperature, moisture, and oxygen conditions during grafting:
Temperature is a necessary condition for cell activity; only cell activity, including cell division, can promote the growth of the scion.
Generally, for different rose varieties, cells can grow rapidly within a temperature range of 13 to 32°C. When grafting outdoors, one should choose the period of the year with the above temperatures and with the cambium in vigorous activity. Such conditions generally occur in spring, early summer, and September and October. The callus tissue grown from the cambium is composed of thin-walled, plump cells, which easily lose water and dry out, causing the scion to dry up and die. Therefore, the union must be bound tightly to maintain the moisture of the tissue. The rapid division of callus cells is often accompanied by respiration, and at this time oxygen is indispensable. Therefore, using plastic tape to bind the union has the dual effect of retaining water and promoting respiration.
5. Quality of rootstock and scion:
According to the growth pattern of the rootstock and the comparison between its cutting seedlings and seedling plants, selecting one-year-old seedling plants as rootstock for rose grafting is relatively ideal, because they have well-developed root systems, strong disease resistance, smooth main stems, and moderate thickness. Of course, using cutting seedlings for grafting also has its advantages, such as a short cutting time and easy rooting.
Grafting Technique
1. Disinfection of tools before grafting: when grafting, while ensuring the alignment of the cambium of rootstock and scion, one must also ensure that the cut surfaces of the rootstock and scion are flat. The binding action must be nimble and quick, to avoid oxidation and discoloration of the cut surface.
2. Selection and storage of scions: the selection of rose scions is directly related to the survival quality of the grafted seedlings and whether vigorous grafted plants can be formed. Stored scions can be taken out for grafting at any time, saving the trouble of cutting and grafting on the spot, saving a great deal of time, and allowing grafting at any time. The selection and storage of scions should note the following points:
(1). The scion wood must be healthy and free of pests and diseases; if there is powdery mildew, black spot, or red spider mite, etc., it must not be used.
(2). Usually, one-year-old or less-than-one-year-old post-bloom scion wood can be selected; counting from the second axillary bud below the bract, the entire flowering branch can be used as scion wood. Flowering branches vary in length, from 150 cm long to about 10 cm short, and contain varying numbers of graft buds; sometimes on the same scion branch the graft buds differ in plumpness, so buds must be selected individually. Overall, graft buds taken from the middle part of the scion branch are most suitable for grafting, with the best survival rate.
(3). As long as the scion has plump graft buds, it can be stored for later use at any time of the year; of course, in summer it should be cold-stored, and in winter it can be sand-stored. The time for cold storage and sand storage must not be too long; usually the number of scions cold-stored and sand-stored should be roughly equal to the number of rootstock plants. Or the number for cold storage or sand storage can be determined by the grafting speed. The prerequisite for cold storage and sand storage is appropriate moisture and temperature retention; only appropriate moisture and temperature retention can maintain the normal physiological activity of the scion wood. Practice has proved that scientific cold storage and sand storage are conducive to the survival rate and survival quality of grafting.
Grafting Period
According to the growth habits and growth patterns of roses, grafting can be done at any time of the year, but specific situations must be analyzed specifically. When the temperature reaches above 33°C, the survival rate of grafting is relatively reduced; below 5°C, grafted plants are in a dormant state, so using the winter dormant period for grafting is appropriate.
Grafting Methods
According to production practice and the mainstream methods of rose grafting, rose grafting methods can be divided into chip budding with wood, T-shaped budding, large open-door budding, and rootless rootstock grafting.
1. Chip budding with wood:
(1). On the sunny side of the rootstock 4 to 6 cm above the ground, use a single-edge razor blade to cut a shield-shaped incision 1 to 2 cm long at an oblique angle of 30 to 40°. Then, in the same way and of the same size, select a plump, full graft bud on the scion wood and insert it into the prepared rootstock incision; use white plastic tape of moderate elasticity and width to bind firmly from bottom to top with overlapping edges, at appropriate tightness.
(2). When inserting the graft bud into the incision, align the cambium over as large an area as possible, and do not expose the rootstock's xylem. This method is simple and quick to perform and has a relatively high survival rate, but it requires high technical skill; one must master the technique of matching rootstock and scion in one go.
2. T-shaped budding: T-shaped budding is likewise a popular method in rose grafting production.
(1). Use a short-bladed vertical knife to make a horizontal cut on the branchless sunny side of the rootstock 4 to 6 cm above the ground, about 5 to 8 mm wide, with a depth just reaching the xylem; then make a vertical cut downward from the middle of the horizontal cut, about 1.5 to 2 cm long, so that the bark forms a T-shaped opening.
(2). Cut the scion wood from the mother plant, remove the leaf blade but keep the petiole, select a plump, full graft bud, and use a sharp knife to make a horizontal cut about 0.5 cm above it, penetrating about 3 mm into the xylem; then use the knife to push and cut upward from about 0.5 cm below the graft bud, just reaching the xylem, up to the cut above the graft bud.
(3). Use the knife to pry open the bark of the T-shaped incision on the rootstock, insert the graft bud into the incision, and after insertion make fine adjustments so that the horizontal cut of the graft bud aligns with the horizontal cut of the rootstock without exposing the rootstock's cambium; positioning it correctly in one go is ideal. Once the graft bud is properly placed, bind it with plastic tape; when binding, the graft bud must be left exposed. Although this method seems cumbersome and time-consuming, once proficient one can complete the grafting of one plant within one minute, and the graft survival rate is extremely high and the survival quality excellent.
3. Large open-door budding: the large open-door budding method is also a very popular grafting method; it requires high technical skill, and the exposure time of the rootstock and scion cuts must not be too long. The key operating points are as follows:
(1). On the smooth, branchless sunny side of the rootstock 4 to 6 cm above the ground, use a short-bladed vertical knife to make a horizontal cut, with a depth just reaching the xylem; then, aligned with one end of the horizontal cut, make a vertical cut downward 1.5 to 2 cm, and then at the other end of the horizontal cut make another cut in the same way. Both cuts should be just deep enough to reach the xylem; then make another horizontal cut about 0.5 cm below the horizontal cut, and use the knife to remove the cut-off small square piece of bark to expose the xylem, then use the knife to lift it open.
(2). Remove the leaf blade from the scion wood but keep the petiole, select a plump, full graft bud, and use the knife to make a horizontal cut about 0.3 cm above the graft bud; then, aligned with one end of the horizontal cut, make a vertical cut downward 1.5 to 2 cm, and then at the other end of the horizontal cut make another vertical cut in the same way; then, aligned with the two vertical cuts, make a horizontal cut to form a rectangular bud plate with the graft bud, with all four cuts reaching the xylem.
(3). Use the knife or your hand to lift open the rootstock bark and quickly insert the graft bud and make fine adjustments. Align the two horizontal cuts of rootstock and scion, and bind with plastic tape at appropriate tightness. Grafting by this method gives a large contact area of rootstock and scion cambium and rapid nutrient supply, which can greatly improve the survival rate and survival quality.
(4). Rootless rootstock grafting: rootless rootstock grafting is grafting onto a lignified new branch of thornless rose without roots, followed by cutting propagation. This method of rose graft propagation meets the needs of factory-style, specialized, and large-scale production, and is not limited by season. Carrying out all-weather assembly-line production indoors can greatly improve production efficiency, survival rate, and survival quality. Rootless rootstock grafting can adopt the above methods of chip budding with wood, T-shaped budding, and large open-door budding. When using this method for propagation in summer, the graft bud must bear 1 to 2 leaves, and after cutting, moisture-retention care is required. If rootless rootstock graft cuttings are taken in a greenhouse in winter, the greenhouse temperature at night must not be lower than 5°C; for cuttings in a sunny cold frame, cold-protection measures must be strengthened to avoid frost damage.
Whether rootless rootstock grafting is carried out in summer or winter, after grafting the cuttings' planting density is thinner than that of ordinary rose cuttings. When cutting, the cuttings should all lean northward at 70°, with the graft bud side facing the sunny spot. Technical requirements: row spacing 5 cm × 5 cm, cutting depth about 3 cm.
Rose Disease and Pest Control
1. Slug moth
Mainly the larvae of the yellow slug moth, brown-edged green slug moth, beautiful brown slug moth, mulberry brown slug moth, and flat slug moth, which feed heavily on leaves in hot seasons. Control method: once found, immediately spray with 90% trichlorfon crystal at 800 times dilution, or 2.5% fenvalerate EC at 15 00.
2. Scale insects
Mainly white scale, Japanese wax scale, red wax scale, brown soft scale, cottony cushion scale, fern scale, snake-eye scale, etc.; their damage is characterized by piercing and sucking the sap of rose young stems and young leaves, causing poor plant growth, mainly induced by high temperature and high humidity, poor ventilation, and insufficient light. Control method: during the peak hatching period of the nymphs, spray with 25% buprofezin wettable powder at 2000 times dilution.
3. Aphids
Mainly the rose aphid, green peach aphid, etc.; they pierce and suck the sap of the plant's young and tender organs, damaging young stems, young leaves, flower buds, etc., seriously affecting the plant's growth and flowering. Control method: promptly spray with 10% imidacloprid wettable powder at 2000 times dilution.
4. Rose three-toothed sawfly
Mostly in the larval stage, dozens or more than a hundred gather in groups to do damage, and in a short time can eat all the plant's young leaves, leaving only a few main leaf veins, seriously harming the plant's normal growth. Control method: for a small number of potted plants, when they first appear, pick off the leaves where large numbers of larvae gather and crush them to death. If they appear in large numbers, spray with 75% phoxim EC at 4000 times dilution.
5. Carmine spider mite
It can occur 10 to 16 generations a year; adult mites, young mites, and nymph mites gather on the underside of leaves to pierce and suck and do damage, and eggs are mostly laid on both sides of the leaf veins on the underside of leaves or under gathered fine silk webs. Each female mite can lay 50 to 150 eggs, up to 500 at most; completing one generation takes only 10 to 13 days at a temperature of 23 to 25°C, and about 7 to 8 days at 28°C. It runs rampant in hot, dry seasons, often causing large numbers of dense small white spots on the upper surface of leaves, with the underside turning yellow and occasionally bearing dead spots. Control method: once found, promptly spray with 25% fenbutatin oxide wettable powder at 2000 times dilution.
6. Scarab beetles
Mainly the copper-green scarab, black velvet scarab, white-spotted flower scarab, small green flower scarab, etc.; the adults often gnaw on new leaves, tender shoots, and flower buds, seriously affecting the plant's growth and flowering. Control method: taking advantage of the adults' death-feigning behavior, shake them off in the evening and kill them. Taking advantage of the adults' phototaxis, use black-light lamps to trap and kill them. When the adults are feeding and doing damage, spray with 50% malathion EC at 1000 times dilution.
7. Stem borer
The rose stem borer is the larva of the rose stem sawfly; it bores holes in the stem, drills into the stem to gnaw, causing branches to break and the upper part to die. The larva is white, with a pale yellow head, and about 15 to 17 mm long. The adult has wings, is black, with yellow on both sides of the abdomen. The pupa is vermilion red. Usually 1 generation occurs per year, doing damage from May to June, pupating in the stem to overwinter; it is a fairly harmful pest. Black spot: mainly infects leaves, petioles, and tender shoots; when the leaf first becomes diseased, purple-brown to brown small spots appear on the upper surface, and after enlarging they are mostly round or irregular dark brown lesions. Spraying with carbendazim, thiophanate-methyl, daconil, and other agents can be used.
8. Powdery mildew
It infects young leaves, with white powdery material appearing on both surfaces; early symptoms are not obvious, and 3 to 5 days after the white powdery layer appears, the leaves become water-soaked, gradually lose green and turn yellow, and when severely damaged cause leaf drop. Spraying carbendazim or triadimefon during the onset period is sufficient, but Guoguang Yingna has the best effect.
9. Leaf blight
It mostly invades at the leaf tip or leaf edge, initially as small yellow spots, then rapidly expands inward into irregular large lesions; severely affected leaves wither over 2/3 of the leaf, the diseased part fades green and turns yellow, and brown dried parts fall off. To control the above diseases, besides strengthening fertilizer and water management, in winter the diseased branches and diseased leaves should be cut off, and fallen leaves on the ground cleared away to reduce the source of initial infection; when the disease occurs, integrated control should be adopted, and fungicides such as carbendazim and thiophanate-methyl should be sprayed.
10. Black spot
It mainly infects leaves, petioles, and tender shoots; when the leaf first becomes diseased, purple-brown to brown small spots appear on the upper surface, and after enlarging they are mostly round or irregular dark brown lesions. Spraying with carbendazim, thiophanate-methyl, daconil, and other agents can be used.
Rose Variety Classification and Classification Overview
Among angiosperms, in the class Dicotyledoneae, the three outstanding members of the Rosaceae - rugosa rose, Chinese rose, and rose - are in fact all plants of the genus Rosa. In Chinese, people are accustomed to calling varieties with large flower diameters and solitary blooms Chinese rose, those with small clustered blooms rose, and those from which essence can be extracted rugosa rose. But in English they can all be collectively called rose. According to officially registered varieties, there are about thirty thousand roses. In fact, the more than 200 major varieties under the genus Rosa are all called rose abroad, and in Taiwan, China they are all called rose.
Main Types
The main types of Chinese rose include edible rose, climbing rose (CI series), large-flowered fragrant rose (cut-flower roses are mainly large-flowered fragrant roses) (HT series), floribunda rose (polyantha rose) (F/FI series), miniature rose (Min series), tree rose, grandiflora rose (Gr series), shrub rose (sh series), ground-cover rose (Gc series), etc.
Climbing Rose (CI Series)
A new star in landscaping - the climbing rose is a climbing shrub of the genus Rosa in the subfamily Rosoideae, with relatively tall plants. Each year it sends up thick new shoots from the base, and thicker lateral branches grow from the tips of two-year-old climbing branches. It has a four-season blooming habit, but the number of flowers is greatest only in late spring or early summer, the two seasons; it is a climbing growth type, with well-developed roots, extremely strong resistance, rapid branch sprouting, and robust growth. A single plant sprouts 7 to 8 main branches per year, and each main branch in turn branches in an open pattern; the highest annual growth can reach 5 m, and it has very strong disease resistance.
It is extensively managed, tolerant of pruning, rich in flower forms, and blooms continuously through the four seasons (some are also one-season or two-season bloomers), with brilliant colors, bold and unrestrained, a long flowering period, and a rich fragrance. Flower colors include vermilion, bright red, vivid red, pink, golden yellow, orange yellow, bicolor, pure white, etc.; it sprouts at the internodes in the second year, blooms all over the plant, with numerous flower heads, and can form landscapes such as flower balls, flower columns, flower walls, flower seas, flower waterfalls, arch shapes, and corridor shapes.
Cut-Flower Roses
Varieties include:
1. Red series: Royal Carriage, Dushutai, Uncle Walter (classic variety), Orange-red Flame, Vermilion Queen, Chang'e Flying to the Moon, Summer Camp, Mozart, etc.
2. Yellow series: Spectrum (classic variety), Huan Teng, Changhong, Golden Sunshine, King of Light, etc.
3. Pink series: Pink Fan, Orchid Moon, Parade (classic variety), Angela, etc.
4. White series: Baihe, Climbing Green Cloud.
5. Bicolor series: Eden Rose (classic variety), Flower Fairy, Colorful Cloud, Flying Tiger, Flower Soul, Climbing Electronic Watch, Purple Robe Jade Belt (classic variety), etc.
6. Orange series: Kunteng, Western Land, Sweet Dream, Xishui, etc.
Large-Flowered Fragrant Rose (HT Series)
There are numerous varieties, and it is the main body of modern roses. Its characteristics are: robust plants, single or clustered flowers, large flowers, elegant and graceful flower form, numerous and bright, vivid flower colors, fragrant scent, and strong ornamental value.
Varieties include:
1. White: Tinwalter, Kennedy (classic variety), Wedding White, First White, White Satin, Green Cloud, Tineke (classic variety), White Christmas (classic variety), White Wine, etc.
2. Yellow: Golden Phoenix, Ohio Gold, Gold Medal, Rhine Gold (classic variety), Gold Medal, Solido, Green Field, Princess Cantor, etc.
3. Red: Crimson Fan, Mingxing (classic variety), Mélang Rouge, Carte d'Or, Hanqian, Rose Center, Congressman Buda, Xiangmo, Olympic Games, Xiangyun, etc.
4. Blue: Blue Moon (classic variety), Blue Peace, Sapphire, Blue Ribbon (classic variety), Jacaranda, Blue Perfume (classic variety), Blue River (classic variety), Paradise, etc.
5. Black-red: Mister Lincoln (classic variety, one of the 10 most fragrant rose varieties, a representative variety of large-flowered fragrant roses, and a standard flower in rose judging), Warrior, Big Purple Light, Black Whirlwind, Spotted Rock, Black Pearl, Vermilion and Ink Double Brilliance, etc.
6. Green: Green Star, Green Calyx.
7. Orange: Jesta. Joey, Quintly, Golden Bull, Maxina, Grand Medal, etc.
8. Pink: Pink Fan, Pink Peace (classic variety), First-Class Lady, Japanese Pink, Drunken Fragrant Wine, Chuck Red, Tang Red, etc.
9. Bicolor: Peace (classic variety), Fire Peace, Chicago Peace (classic variety), Double Delight (classic variety, first among the 10 most fragrant rose varieties), Greek Home (fragrant) (classic variety), Mélang Caprice, Love, My Choice, Light of Peace, Quaker, Modern Art, Princess of Monaco, Colorful Cloud, Garibaldi, Float, etc.
Floribunda Rose (F/FI Series)
The floribunda rose has an expansive growth habit, with flower heads in clusters; it is cold-resistant, heat-resistant, drought-resistant, waterlogging-resistant, and disease-resistant, with extremely strong adaptability to the environment. It is widely used in urban environmental greening, landscaping flower beds, expressways, etc.
Miniature Rose (Min Series)
A new variety in the rose family, with a short plant form, spherical, and numerous flower heads; because of its unique character it is also called "diamond rose." It is mainly used for potted display, dotting lawns, and arranging flower color patterns.
Tree Rose
Tree rose, also called rose tree or rose standard, achieves a standard upright trunk and crown through grafting two or more times. Current tree rose specifications (height 0.4 to 2.0 m, trunk diameter 1 to 5 cm).
Advantages: good ornamental effect, unique shape, noble and elegant, with distinct layers, visually refreshing; diverse shapes, including round ball type, fan type, waterfall type, miniature, etc.; it retains the advantages of ordinary roses such as strong fragrance, long flowering period, and diverse flower colors, while appearing more novel, more noble, and more passionate, and therefore has higher aesthetic value.
Habits: strong adaptability. The flower crown of the tree rose is farther from the ground than that of ordinary flowers, so it is not easily infected by soil-borne pests and diseases; the trunk is taken from rose, with well-developed roots and extremely strong vitality of the rosaceous rose; especially in areas with relatively high alkalinity, where growing ordinary roses is difficult, the tree rose fills the gap.
Ground-Cover Rose (Gc Series)
The newest ecological vegetation flower - the ground-cover rose, its growth situation is:
It is prostrate and spreading in type, with a height not exceeding 20 cm. Each plant sprouts more than 50 branches a year, the branches root where they touch the ground, and each branch blooms 50 to 100 flowers at a time.
The root system is well developed, rooting as deep as more than 2 m.
The coverage area is large, with a single plant covering more than 1 sq m.
It has a strong gregarious flowering habit, with continuous blooming through the four seasons.
Its biological habits are:
Drought-tolerant; it can grow in areas with annual rainfall of 150-200 mm.
Tolerant of poor soil, slopes, and deep shade; it can be planted and grown in areas where irrigation is difficult.
Tolerant of high temperature and high humidity; it grows normally at low temperatures of -30°C and high temperatures of 42°C.
Extensive management, strong disease resistance, no need for pesticide application, no pruning, reducing a large amount of management costs.
The effect of arranging color blocks and roadside strips is remarkable; ground-cover roses have deep roots and lush leaves, with strong spreading branches and leaves, and strong leaf surface respiration, with a high absorption rate of urban dust and harmful substances; it is an excellent choice for water conservation and soil erosion control.
Varieties include: Bazinuo, Ground Cover No. 1, Hadefujun, Rose Carpet, Kent, New Olympic, and Huatan.
Peace Rose
The Peace rose was bred by the Frenchman Francis Meilland in 1939 under the iron heel of fascism. Under the code number 3-35-40, he sent this rose to the United States. After the American horticulturist Robert Pyle received this variety that had traveled across the ocean, he immediately distributed it to important nurseries in the North and South of the United States for propagation. A few years later, this new variety made a comeback and caused a sensation throughout the United States. In 1945, the American Pacific Rose Society named this variety Peace and declared: We are convinced that this most remarkable new rose variety of our time should be named after the greatest wish of the world's people today, "Peace," and we believe that the Peace rose will serve as a model and grow forever in the gardens of our descendants. On the very day the Peace rose was named, the Allied forces captured Berlin and Hitler perished. And when the Peace rose received... [unconditional surrender of American imperialism]. When the United Nations was founded and its first meeting was held in San Francisco, in the vase of every delegate's room there was a bouquet of Peace roses presented by the American Rose Society. On it was a note reading: We hope the "Peace" rose can influence people's thinking and give the world lasting peace. During World War II, fascist bandits in a village called Lidice, fourteen kilometers from Prague, killed one hundred and seventy-five men over the age of fifteen and imprisoned the women and children in concentration camps. After the war, to commemorate these people, many rose experts and some voluntary donors built a rose garden here in 1955, in which the main variety was the Peace rose.
Red Hat Rose
Product name: Red Hat Rose
Category: Flowering shrubs -> Red Hat Rose
Product introduction: Red Hat Rose scientific name: Rosa chinensis Jacq
Scientific name: Rosa chinensis Jacq
Family and genus: Rosaceae
Climbing Rose
Distribution: Native to Hubei, Sichuan, Yunnan, Hunan, Jiangsu, Guangdong and other provinces; now commonly cultivated in various places, especially the original species and the monthly red. The original species and many varieties were introduced abroad as early as the early 18th century, becoming important original material for modern rose crossbreeding.
Morphological characteristics: Evergreen or semi-evergreen erect shrub, usually with hooked prickles. Leaflets 3-5 cm, broadly ovate to ovate-elliptic, 2.5-6 cm long, apex acute, margin sharply serrate, glabrous on both surfaces, glossy above; petiole and rachis sparsely bearing prickles and short glandular hairs; stipules mostly adnate to the petiole, margin glandular-ciliate; flowers often several clustered, rarely solitary, about 5 cm in diameter, dark red, pink, to nearly white, slightly fragrant; sepals often pinnately lobed, margin glandular-hairy; pedicels mostly slender, glandular-hairy. Fruit ovoid to globose, 1.5-2 cm long, red. Flowering period late April to October; fruit ripening period September to November.
Variety Evolution
Breeding and variety evolution: The process of rose breeding and variety evolution is divided into three independent periods. In these three periods, the breeding methods are relatively different, but the theme of breeding based on genetic changes is common. The three periods are divided as follows:
1. Early period (prehistoric to 1875)
2. Modern period (1875-1967)
3. Contemporary period (1967 to present)
The first period lasted about 5,000 years, until 1875, when Mendel published his famous laws of hybridization inheritance, and people's rose breeding also developed into directed crossbreeding. From then on, most rose breeders considered breeding issues from the perspective of Mendelian inheritance or qualitative inheritance, while quantitative inheritance or weighted inheritance behavior in breeding was then little known or rarely applied.
The outline of rose breeding in the first period is as follows:
1. Numerous rose species were collected and all planted together.
2. Only very few of these species contributed to rose breeding in the second period.
3. Intraspecific hybridization was a naturally occurring process.
4. New varieties came only from natural pollination.
5. Rose breeding work was concentrated in Western Europe and the United States.
6. The natural evolutionary trend was from diploid to tetraploid.
7. A primitive huge gene pool was formed.
8. Domestication reduced genetic resources.
9. Rose varieties before 1875 were inferred.
The second period began with the application of directed techniques and ended in 1967. From 1967 onward, molecular biology techniques began to be applied in roses. This period lasted 90 years.
The third period began in 1967 and has already gone through more than 30 years.
The beginning of rose breeding: people engaged in horticulture in the early period selected excellent types from wild roses and planted them together. Very early in prehistoric times, several rose species or several domesticated varieties among them were cultivated in China, Persia, Mesopotamia, Egypt, Greece, and Italy; this period was far earlier than the first year of the Common Era. In ancient horticulture, it is unclear whether roses were propagated by seed or asexually, but over more than 5,000 years, through sowing seeds obtained from natural pollination, a large number of new varieties appeared.
The domestication of varieties and the production of intraspecific hybrid hybrids was a long process; some undesirable primitive types were discarded, asexual propagation techniques developed, and the progress of domestication accelerated. Through introduction by travelers and variety replacement, horticulturists obtained new genetic resources (for any domesticated species, genetic changes are very small). Early breeders knew that planting a certain variety together with other varieties had a great impact on the offspring, and they also retained quite a lot of records on female parents and the production of new varieties, enabling us to confirm the evolutionary process of some varieties. However, breeders at that time still did not understand that male parent characteristics would be passed on to the next generation through pollination. At that time, some diploid varieties also evolved into tetraploid varieties. Almost all main varieties of modern roses are tetraploid. It is worth noting that within some continuously flowering varieties, vitality increases with the increase in ploidy. If this knowledge had been understood earlier, it might have stimulated breeders of that period to take interest in directed breeding of new tetraploid varieties from diploids.
The China rose native to China played a more important role in the breeding of new Western European rose varieties than any other rose species. It brought to new varieties the phenomena of continuous flowering and shrubby growth that were previously unknown. Multiflora rose is also a very important parent, bringing the characteristic of umbel-like inflorescences to roses.
In the second period, research in biomolecules developed unprecedentedly. However, there was not much scientific research on roses. This situation can be seen from the past two journals, Plant Breeding and Horticultural Abstracts; among the thousands of documents in them each year, very few articles were about roses. Scientific research work on roses mainly focused on taxonomic cytology, physiology, morphology, growing conditions, varieties, and rootstock research. The goals of breeding research were trait inheritance, simplification of crossbreeding procedures, and increasing the rates of direct and indirect selection. Research on low-energy-consumption and pest- and disease-resistant varieties was relatively scarce and far behind that of fruit trees. For example, almost all breeding work was confined to universities or research institutes.
In the second period, there were two major discoveries. First, the breeding of continuously flowering, large-flowered varieties, which was developed by Pernet in 1900. It marked the first success in directed interspecific hybridization breeding of roses.
The second major achievement was in 1920, the breeding of the old dwarf compact variety "pompon de paris"; this new type was rediscovered in Switzerland and is now named R. roulettii Corre von, the origin of some modern miniature roses.
In the early part of the second period, people discovered a large number of gene types in roses. Faced with numerous genetic resources, breeders in the second period seized the opportunity; some parents were selected and retained, others were discarded, crossbreeding techniques were further developed, and indoor crossbreeding began. Many different original parents could be crossed with one another, and as a result, the originally clear boundaries between different species disappeared.
In the 1930s, roses were divided into greenhouse roses and open-field roses. Encouraged by the demand for the two categories of varieties, breeders began to select and breed types suitable for their respective specific environments. Today, breeders mainly focus on the first category, because the quality of greenhouse varieties is 3-5 times that of open-field varieties, making greenhouse varieties particularly attractive. Because there have always been very abundant genetic resources among varieties, breeders have been quite successful in breeding work for the two categories. Gradually, some types suitable for greenhouse production were bred, including some small-flowered, medium-flowered, and large-flowered varieties.
Generally speaking, there is no difference in method between the selection and breeding of greenhouse roses and open-field roses. When it comes to methods or breeding procedures, breeders mostly use negative methods to select their seedlings. In the selection process, about 99% of seedlings are eliminated. This method of strict selection among tens of thousands of seedlings each year continued for nearly 100 years, which inevitably led to serious loss of genes. Even worse, almost every breeder selected the same traits and therefore applied the same selection standards.
Differences from Roses
Rose stems are tall and long, prickles are mostly straight, flowers are small, flower color is single, and the flowering period is short. In contrast, rose branches are upright, flower colors are rich, and fragrance is present. Rose leaflets are also 5-9 in number, but the underside of the leaf is wrinkled, the leaf back is whitish with small prickles, and the whole leaf is relatively thick with sunken veins. Rose stems are low and short, prickles are large, and each node roughly has 3 or 4 hooks; flowers are large, flower colors are rich, fragrance is light or absent, and leaflets are generally 3-5 in number, flat and smooth.
The Role and Uses of Roses: Influence on the Home Environment
1. A rose in the home gives you a home full of poetry. Different kinds of roses have different flower languages. For example, the flower language and symbolic meaning of pink roses: first love, elegance, nobility, gratitude; the flower language and symbolic meaning of red roses: pure love, passionate love, chastity, courage; the flower language and symbolic meaning of white roses: respect, sublimity, purity; the flower language and symbolic meaning of orange-yellow roses: full of youthful spirit, beauty; the flower language and symbolic meaning of green-white roses: innocence, frugality, or a pure heart; the flower language and symbolic meaning of black roses: individuality and creativity; the flower language and symbolic meaning of blue-purple roses: preciousness, cherishing. Such an interesting flower, planted as one plant, gives your whole home a new face.
2. The dark appearance makes the owner more energetic. Usually, dark things give people a visual impact. Imagine if, when you return home, facing four walls all white and seeing furniture all light-colored, it is very lifeless. If suddenly beside the television you see a vigorously growing rose, the whole person will immediately become energetic, because the vision has suddenly changed, a person becomes refreshed, life especially becomes lively, and the feeling is particularly good.
3. The role of greening the home is also self-evident. Roses are evergreen or deciduous shrubs, with green branchlets, scattered prickles, and some are almost thornless; leaf margins are serrate, both surfaces are glabrous and smooth, and stipules are connate with the petiole. Flowers are borne at the top of branches, often clustered, rarely solitary, and flower colors are numerous. There are countless varieties, mostly double-flowered but some single-flowered; flowers are slightly fragrant; the fleshy rose hip, after maturity, is red-yellow and splits open at the top; the "seed" is an achene, chestnut brown. Such a beautiful rose constantly absorbs components in the air that are unfavorable to human life and releases oxygen beneficial to the human body, so the greening effect is achieved without notice.
Feng Shui Role
First, planting roses in one's own garden can make family members feel refreshed. Roses are evergreen or deciduous shrubs, with green branchlets, scattered prickles, and some are almost thornless; leaf margins are serrate, both surfaces are glabrous and smooth, and stipules are connate with the petiole. Flowers are borne at the top of branches, often clustered, rarely solitary, and flower colors are numerous. There are countless varieties, mostly double-flowered but some single-flowered; flowers are slightly fragrant; the fleshy rose hip, after maturity, is red-yellow and splits open at the top; the "seed" is an achene, chestnut brown. Its bright red appearance makes people energetic. At the same time, it should be noted that the rose is a relatively toxic plant, so we cannot plant it too close to us, such as in the living room and bedroom, and when planting it in the garden we also cannot plant too many, because its fragrance is toxic.
Then, planting several roses in the backyard of the home makes the family's life happier and happier. The flower language and symbolic meaning of pink roses: first love, elegance, nobility, gratitude; the flower language and symbolic meaning of red roses: pure love, passionate love, chastity, courage; the flower language and symbolic meaning of white roses: respect, sublimity, purity; the flower language and symbolic meaning of orange-yellow roses: full of youthful spirit, beauty; the flower language and symbolic meaning of green-white roses: innocence, frugality, or a pure heart; the flower language and symbolic meaning of black roses: individuality and creativity; the flower language and symbolic meaning of blue-purple roses: preciousness, cherishing. The symbolic meaning of roses is very obvious. If a family lives together every day and looks at the roses from afar, associating them with the meanings they represent, and thereby cherishing every day of life with family members, happiness begins from here, and this home where they live together also becomes a Feng Shui home.
Garden Uses of Roses: Landscape Greening
Roses have indispensable value in landscape greening. Among flowers, roses are the most frequently used in northern and southern gardens. Roses are the main ornamental flowers in spring; their flowering period is long, ornamental value is high, and price is low, so they are loved by gardens in various places.
"Linking" Role
Because of their climbing growth characteristics, roses are mainly used for vertical greening and have a unique role in garden streetscapes and beautiful flower environments. If they can form an ornamental
purposeful passage and flower columns, made into various arch shapes, grid shapes, and frame-type trellises for roses to climb on, and then properly pruned and shaped, they can decorate buildings and become a clever "link" connecting buildings and gardens.
Environmental Protection Role
They can be made into continuous flower hedges, flower screens, and flower walls, used in institutions, schools, residential communities, urban squares, and other places. They can not only purify air and beautify the environment, but also greatly reduce noise pollution in surrounding areas and alleviate the urban greenhouse effect in hot summers.
Medicinal or Dietary Therapeutic Value of Roses
The medical information and healthy dietary therapy information on Hugarden Network are for reference only and cannot be used as a basis for diagnosis or medical treatment. Any health problem should be consulted with professional medical personnel, and treatment of any disease should follow a doctor's advice.
Ultimate flower-protecting task: To love yourself, start from reality and strictly follow a doctor's advice. For illness, do not be careless, do not delay, do not give up hope; face it bravely, warm the silent world with love, and care for the flower field in your heart with care.
Medicinal Value
[Aliases] Yueyuehong, Sijihua, Shengchun, Douxuehong, Yueguihong, Yueguihua, Yueji, Yueyuekai, Changchunhua, Yueyuehua. Yanxuehong, Chouchunhua, Yuejigang, Yueguanghua, Tongchuizi, Sijichun, Shouke.
[Definition]: The dried flowers of the Rosaceae plant Rosa chinensis.
[Collection]: Can be harvested throughout the year; picked when the flowers are slightly open.
[Nature, flavor, and meridian tropism]: Sweet, bland, slightly bitter, neutral. Enters the liver meridian.
[Effects]: Activates blood and regulates menstruation, soothes the liver and relieves depression, reduces swelling and detoxifies.
[Indications]: 1. Liver depression and blood stagnation, irregular menstruation, dysmenorrhea, amenorrhea, and distending pain in the chest and hypochondrium; 2. Traumatic injury, blood stasis swelling and pain, carbuncles and toxic swellings, scrofula. [11]
[Trade name] Yuejihua. The best quality is complete dried flower buds or initially opened flowers, bright in color, and clear in fragrance.
[Prescription names] Yueji, Yuejihua, Yueyuehong, Sijihua.
Rose is not only an ornamental flower with a long flowering period and fragrant, colorful blooms, but also a good gynecological medicine. Traditional Chinese medicine believes that rose is sweet in flavor and warm in nature; entering the liver meridian, it has the effects of activating blood and regulating menstruation, reducing swelling and detoxifying. Because rose has obvious effects of removing blood stasis, promoting Qi flow, and relieving pain, it is often used to treat irregular menstruation, dysmenorrhea, and other conditions.
Clinical reports show that when women have amenorrhea or scanty, pale, and low-volume menstruation, lower abdominal pain, accompanied by poor spirits and dry bound stools, or when the above symptoms appear during the menstrual period, treatment with Shengchun Tang has good effects. The medicinal composition of Shengchun Tang is: rose 10 g, angelica 10 g, salvia 10 g, white peony 10 g, add an appropriate amount of brown sugar, and decoct in clear water for oral administration. The soup tastes sweet and fragrant, with no difficulty in swallowing. Take 3 doses 3-5 days before each menstruation, each time adding one egg to cook together; its effect is reliable, and it is indeed a wonderful formula for regulating menstruation, regulating Qi, and activating blood.
The combination of rose and bitter orange flower is even better as a prescription for treating menstrual diseases caused by disharmony of Qi and blood. Use 15 g each of rose and bitter orange flower, decoct in water and take. Rose emphasizes activating blood, while bitter orange flower tends toward promoting Qi flow. The two medicines together, one Qi and one blood, regulate both Qi and blood, and their effects of regulating menstruation and activating blood, promoting Qi and relieving pain are very good. It mainly treats conditions such as women's liver Qi discomfort, imbalance of Qi and blood, and stagnant obstruction of meridians, leading to irregular menstruation, chest and abdominal pain, loss of appetite, or even nausea and vomiting.
For common gynecological diseases, folk single prescriptions and proven prescriptions using rose are also very effective. For example: fresh rose 20 g infused in boiling water and taken can treat irregular menstruation or abdominal pain during menstruation; rose root 30 g, cockscomb flower and motherwort 15 g each, decocted in water with eggs to eat, can treat dysmenorrhea;
For excessive menstruation and excessive vaginal discharge, use rose (or root) 15 g decocted in water and taken, or stewed with pork; rose 10 g and jujube 12 g decocted together, then add an appropriate amount of honey and take; this prescription is fragrant and sweet, not like medicine, and is very effective for menstrual tidal fever. In addition, women often infuse rose petals in water as tea, or add them to other beauty teas for drinking, which can also activate blood and improve appearance, helping people stay youthful.
Cultural Background of Roses
One of China's top ten famous flowers. Roses are known as the "Queen of Flowers" and have a spirit of tenacity and unyieldingness, with a long-lasting fragrance.
Status in Traditional Culture
Roses occupy a weak position in traditional Chinese culture, but new archaeological discoveries show that the rose was the totem plant of the northern lineage of the ancestors of the Chinese people, equivalent to the legendary Yellow Emperor tribe.
Roses are now the city flower of Beijing and other cities.
Rose Flower Festival, May 1 to May 20. Every year during this time, Zhengzhou holds a rose flower festival. Not only are there various roses presented by the organizers, but ordinary people in the city can also bring out famous varieties they have cultivated at home for many years. At that time, the whole city is filled with flowers, and parks and streets are full of beautiful fresh flowers with rich fragrance.
Legend
Long ago, at the foot of Shennong Mountain there was a family surnamed Gao. The family had a daughter named Yulan, just eighteen years old, gentle and quiet. Many young noblemen came to propose marriage, but Yulan did not agree. Because she had an elderly mother who had been coughing and coughing up blood all year round, and treatment with many medicines was completely ineffective. So Yulan, without telling her parents, posted a notice seeking medical treatment: "Whoever cures my mother's illness, I am willing to marry him." A young man named Zhongyuan answered the notice and offered a prescription. After Yulan's mother took his medicine, she indeed recovered completely. Yulan did not break the agreement and married Zhongyuan. On their wedding night, Yulan asked what miraculous prescription was so effective. Zhongyuan replied: "Rose, rose, a good remedy for clearing cough. This is a ancestral secret prescription: stewed rock sugar with rose is a miraculous soup for clearing cough and stopping bleeding, specially treating women's diseases." Yulan nodded and remembered it in her heart.
National Flower and City Flower of Roses
It is the city flower of Fuyang, Beijing, Tianjin, Shijiazhuang, Nanyang, Changzhou, Huai'an, and Liuzhou.
National flower of Iraq, the United States, and Luxembourg.
Flower Language of Roses
The flower language of roses: waiting for hopeful hope, happiness, glory, and beauty ever renewed. [13]
The flower language and symbolic meaning of pink roses: first love, elegance, nobility, gratitude.
The flower language and symbolic meaning of red roses: pure love, passionate love, chastity, courage.
The flower language and symbolic meaning of white roses: respect, sublimity, purity.
The flower language and symbolic meaning of orange-yellow roses: full of youthful spirit, beauty.
The flower language and symbolic meaning of green-white roses: innocence, frugality, or a pure heart.
The flower language and symbolic meaning of black roses: individuality and creativity.
The flower language and symbolic meaning of blue-purple roses: preciousness, cherishing.
Rose Pictures