How to grow potted jasmine? Cultivation methods and precautions
Jasmine prefers warmth and humidity, and grows best in a well-ventilated, semi-shaded environment. The most suitable soil is a slightly acidic sandy soil rich in humus. Most varieties are sensitive to cold and drought, and cannot tolerate frost, waterlogging or alkaline soil. When the winter temperature drops below 3°C, the branches and leaves are prone to frost damage, and if it lasts a long time, the plant will die.
The growing environment for jasmine
1. Light: Jasmine likes hot, humid, well-ventilated conditions and needs plenty of light. Jasmine is sensitive to cold. In the south, potted jasmine can be grown outdoors through the winter; in the north, keep it warm in autumn and winter, move it indoors and place it in a south-facing spot. With strong light, the branches are sturdy, the leaves are dark green, and the flowers are abundant and fragrant; with insufficient sunlight, the nodes are sparse, the flowers are few and they lack fragrance.
2. Water: Jasmine is not drought-tolerant, but it also dislikes waterlogging. In the rainy season, promptly pour off any standing water in the pot, otherwise the leaves easily turn yellow. On hot, clear summer days, water twice a day, once in the morning and once in the evening. If the leaves are found to be curling and drooping, spray water on the leaves to promote growth.
3. Soil: For growing jasmine, fertile sandy and semi-sandy soil is best. When planted in slightly acidic soil with a pH of 6 to 6.5, the root system is dense and growth is vigorous. If the soil is heavy clay, lacks organic matter, has low fertility and poor aeration, then the root system will be sparse, the plant short, the stems and leaves thin, and the flowers few and small.
Propagation methods for jasmine
Jasmine is mostly propagated by cuttings, but layering or division can also be used.
1. Cutting propagation: Carry out from April to October. Select mature one-year-old branches and cut them into cuttings with more than two nodes, remove the lower leaves, insert them into a cutting bed of half sand and half soil, cover with plastic film, maintain relatively high air humidity, and they will root after about 40 to 60 days.
2. Layering propagation: Choose a relatively long branch, gently notch it below a node, bury it in a small pot filled with sand and soil, keep it constantly moist, and it will begin to root in 20 to 30 days. After 2 months, it can be cut away from the mother plant as a new plant and planted separately.
How to plant jasmine
In midsummer, water every morning and evening; if the air is dry, supplement with spraying. During the winter dormant period, control the amount of watering, because if the potting soil is too wet, it will cause root rot or leaf drop. During the growing period, apply a dilute cake fertilizer once a week. After repotting in spring, pinch back regularly to shape the plant; after the peak flowering period, prune heavily to encourage new branches, so the plant becomes neat and sturdy and blooms abundantly.
How to fertilize jasmine
From June to September, during the flowering period, frequently apply liquid fertilizer rich in phosphorus, preferably once every 2 to 3 days. The fertilizer can be well-rotted soybean cake and fish waste liquid fertilizer, or ammonium sulfate and superphosphate. Generally, if chemical fertilizer is mixed too strong, it will burn the jasmine plant to death. You can also spray a 0.1% potassium dihydrogen phosphate aqueous solution on the leaves in the evening, which can also encourage more flowering.
Flowering-period care for jasmine
Jasmine loves fertilizer very much. As long as it is cared for properly, a potted jasmine can bloom three times a year. If there is insufficient fertilizer and nutrients, it will bloom once and then stop blooming. With proper management, it can bloom continuously from the end of May to the beginning of November. The key is pruning, sunlight, and the control of fertilizer and water.
Jasmine begins to bloom one after another from early summer. With proper management, three peak flowering periods can occur.
In early June, jasmine begins to produce early flowers one after another. The method of picking the flowers is to pick the flower together with the leafy young shoot, prompting new shoots to grow again and the branches and leaves to flourish. At this time, apply dilute fertilizer water twice a week and keep the potting soil moist.
From late June to early July is the first peak flowering period. At this time, fertilizer and water management should be strengthened: apply light fertilizer frequently, fertilizing once every 2 days with fully rotted organic liquid fertilizer, with a fertilizer-to-water ratio of 1:4. Watering should be sufficient, generally once a day. Usually watering is best done in the morning, while fertilizing is best done in the evening. Continuing this until late July, thanks to sufficient fertilizer and water, the flowers can be made larger and more numerous.
In early August, the second flowering period forms. At this time, fertilize slightly more concentratedly than before, generally with equal parts fertilizer and water. To encourage jasmine to bloom better, you can also spray a superphosphate solution on the leaves. By late August, gradually reduce fertilizing to once every 6 to 7 days; watering still needs to be relatively frequent, maintaining once every 2 days.
From early September to early October, the third flowering period forms. At this time, stop fertilizing and gradually reduce the amount of watering. Because the weather is gradually turning cooler, it will affect the formation of flower buds, so the number of flowers in this batch is relatively small. After flowering ends in mid-October, simply keep the potting soil slightly moist.
Pest and disease control
1. Pest control
The main pests of jasmine are leaf roller moths and red spider mites, which damage the tender leaves at the tips of the shoots, so timely control is necessary. For red spider mites, try not to use dichlorvos or dimethoate, because the smell of these two pesticides is too strong (it does not dissipate for many days and is especially pungent), and they are not specific treatments for red spider mites.
Biological control: Remove dead branches and fallen leaves and burn them in a concentrated manner, which can reduce part of the overwintering population, and protect and use natural enemies. Predatory mites, ladybugs, lacewings, thrips and others all have a certain controlling effect on mites. When choosing pesticides, consider the safety of natural enemies; if conditions permit, natural enemies can be released artificially.
Chemical control: Red spider mites have strong reproductive capacity and strong selection pressure on pesticides, and easily develop resistance, so pesticides should be applied promptly and rotated. Commonly used pesticides and concentrations include 25% azocyclotin wettable powder at 1000 to 2000 times; 50% bromopropylate emulsifiable concentrate at 2000 to 3000 times; 20% amitraz emulsifiable concentrate at 1000 to 2000 times; 20% dicofol at 1000 to 1500 times; 5% flufenoxuron emulsifiable concentrate at 500 to 1000 times; 50% dichlorvos emulsifiable concentrate at 1000 times; 40% omethoate at 1000 times. Note that the above pesticides must not be mixed with alkaline pesticides such as Bordeaux mixture.
2. Southern blight
Symptoms: It mostly occurs at the base of the stem. Infected plants turn brown and rot, the cortex of the diseased part easily peels off, and white silky mycelium appears on the surface. In the later stage, rapeseed-shaped sclerotia form on the diseased part. The pathogen overwinters in the soil or on diseased residues as sclerotia or mycelium. When there is a lot of rain in May to June and August to September each year, repeated infection is likely to occur.
(1) Promptly remove diseased plant residues and destroy them in a concentrated manner.
(2) Strengthen management, carry out strict quarantine, and eliminate sources of the disease.
(3) At the early stage of the disease, disinfect the surrounding soil with a 70% quintozene medicinal soil, or spray 1% Bordeaux mixture or 0.3 degrees Baumé lime sulfur mixture, or use 50% wettable Tuzet medicinal soil for control. When the disease is more severe, spray 75% chlorothalonil wettable powder at 800 to 1000 times, or 65% zineb wettable powder at 800 times.
(4) Use 82 Trichoderma bran biological preparation, mix it with fine soil, and blend it into the potting soil.
3. Anthracnose
Symptoms: It mainly harms leaves, and sometimes also harms tender shoots. At the beginning of the disease, light green to yellow small spots appear on the leaf surface, gradually expanding into grayish brown or grayish white round or nearly round spots. In the later stage, small black dots are scattered on the diseased spots. The pathogen overwinters on the affected leaves as acervuli and mycelium. Generally, the disease is more severe between summer and autumn.
(1) Strengthen cultivation management; promptly remove and destroy diseased leaves when found.
(2) At the early stage of the disease, spray 70% Hymexazol at 600 to 800 times 2 to 3 times, applying once every 7 to 10 days. At home, you can also apply 0.1% mercuric chloride water or gentian violet.
(3) When the disease is more severe, spray 50% thiophanate or 75% chlorothalonil wettable powder at 800 to 1000 times, or 50% carbendazim at 1000 times, or 65% zineb at 500 times.
4. Leaf spot disease
Symptoms: It mostly occurs on the leaves. At the beginning of the disease, brown spots appear on the leaves, gradually expanding into round or irregular shapes; the diseased part becomes thinner and turns brown and transparent, and black granular substances form on the spots. The pathogen overwinters on diseased leaves as mycelium or pycnidia. It generally occurs in May to June, and July to August is the peak period of the disease.
(1) Promptly prune off diseased leaves and destroy them.
(2) Apply less nitrogen fertilizer and more phosphorus and potassium fertilizer.
(3) At the early stage of the disease, spray 70% Hymexazol at 600 to 800 times, once every 7 to 10 days, or 65% zineb at 600 to 800 times, or 1:1:100 1% equal-amount Bordeaux mixture.
5. Sooty mold
Symptoms: At the beginning of the disease, dark brown mold spots appear on the leaves, gradually expanding to form a black sooty mold layer. This disease is caused by bacterial growth triggered by the excrement of aphids and scale insects.
(1) Strengthen management and improve ventilation conditions.
(2) Promptly eliminate aphids and scale insects.
(3) Before the disease occurs, spray 160 times equal-amount Bordeaux mixture; at the early stage of the disease, spray 50% carbendazim wettable powder at 800 to 1000 times.
How to grow jasmine: cultivation methods and precautions for jasmine
Jasmine can not only be used for us to admire but also to make tea, and it is very popular with everyone. So how to grow jasmine has also become something everyone wants to know. Below we will tell you the cultivation methods and precautions for jasmine.
Cultivation methods for jasmine:
1. Environment and light: Jasmine likes hot, humid, well-ventilated conditions and needs plenty of light. Jasmine is sensitive to cold. In the south, potted jasmine can be grown outdoors through the winter; in the north, keep it warm in autumn and winter, move it indoors and place it in a south-facing spot. With strong light, the branches are sturdy, the leaves are dark green, and the flowers are abundant and fragrant; with insufficient sunlight, the nodes are sparse, the flowers are few and they lack fragrance.
2. Fertilizing: The high-temperature period in midsummer is the peak growing season for jasmine. Apply more organic fertilizer and phosphorus and potassium fertilizer, such as peanut cake powder, bone meal, superphosphate and multi-element flower fertilizer, twice a month. During the summer growing period, jasmine often shows luxuriant branches and leaves but no flowers. The main reason is applying too much nitrogen fertilizer, causing excessive vegetative growth. When this happens, control fertilizer and water, increase phosphorus and potassium fertilizer to encourage flower bud formation, and at the same time be sure to move the jasmine to a place with ample sunlight and good ventilation.
3. Water: Jasmine is not drought-tolerant, but it also dislikes waterlogging. In the rainy season, promptly pour off any standing water in the pot, otherwise the leaves easily turn yellow. On hot, clear summer days, water twice a day, once in the morning and once in the evening. If the leaves are found to be curling and drooping, spray water on the leaves to promote growth.
4. Soil: For growing jasmine, fertile sandy and semi-sandy soil is best. When planted in slightly acidic soil with a pH of 6 to 6.5, the root system is dense and growth is vigorous. If the soil is heavy clay, lacks organic matter, has low fertility and poor aeration, then the root system will be sparse, the plant short, the stems and leaves thin, and the flowers few and small.
5. Pruning: Jasmine grows very fast in summer, so prune it promptly. For potted jasmine, prune to retain 10 cm to 15 cm of the base to encourage many sturdy new shoots. If the new shoots grow very vigorously, pinch them back when they reach 10 cm to encourage secondary shoots, which will result in more flowers and a compact plant shape. After the flowers fade, promptly cut off the flowering branches to reduce nutrient consumption, which can also encourage new shoots, making the branches dense, the buds numerous, and the flowering abundant.
6. Pest and disease control: Jasmine is often harmed by moth larvae, scale insects and red spider mites, most seriously from July to September, and they often bore into and feed on the flower buds. You can spray universal powder or fenvalerate diluted 200 times with water, once every half month. Spray even if no pests or diseases have occurred, so as to prevent them in advance. The best spraying times are 9 a.m. and 4 p.m. on clear days; do not spray under the strong midday sun, to prevent pesticide damage.
Precautions for growing jasmine:
1. Do not spray water on the flowers during the flowering period, to prevent premature flower drop and loss of fragrance. When it rains, move potted jasmine to a place sheltered from the rain;
2. Potted jasmine is generally repotted about every 2 years. When repotting, you can put some bone meal and horse hoof powder in the pot as base fertilizer. The best time for repotting is late winter to early spring;
3. When jasmine only grows branches and leaves but does not bloom, it is generally because too much nitrogen fertilizer has been applied, or because of a lack of sunlight. Therefore, when jasmine enters its vigorous growing period, strictly control the amount of nitrogen fertilizer applied and give it more sun, so as to avoid excessive vegetative growth;
Precaution 4 for growing jasmine: In winter, place jasmine in a warm, sunny place to prevent the plant from suffering frost damage. You can also cover the whole plant tightly with a plastic bag and cut a small hole at the top, which can also help keep it warm, retain moisture and prevent freezing. Applying more phosphorus and potassium fertilizer can improve the cold resistance of potted jasmine;
5. Watering precautions: Jasmine also likes acidic soil. During the growing period, apply 0.2% ferrous sulfate water every 10 days to maintain soil acidity. Proper water regulation is the key to growing jasmine: jasmine likes moisture and fears waterlogging; if the potting soil is too wet, it easily causes root rot and leaf drop, or even death;
6. Fertilizing precautions: During the process of growing jasmine, special attention should be paid to fertilizing it. Generally, starting in May, apply dilute soybean cake water once every 7 days. During the bud-setting and flowering periods, apply light fertilizer frequently, about once every 5 days. Starting in October, stop fertilizing. In the rainy season, when growing it outdoors, switch to dry fertilizer, such as soybean cake powder (loosen the surface layer of the pot, add soybean cake powder, and cover it with soil).
More informationIs potted jasmine easy to grow? Precautions for growing potted jasmine
Jasmine is a flower with a very rich fragrance and also has a mosquito-repelling effect. Many households grow it. Below, let us see whether potted jasmine is easy to grow and what the precautions are for growing potted jasmine.
How to grow potted jasmine?
Cultivation method 1 for jasmine, temperature requirements: Jasmine grows best at 25°C to 35°C. Throughout the growing period, it needs sufficient water and a humid climate, and grows best when the relative air humidity is around 80% to 90%. There is often a saying among people that "jasmine cannot be sunburned to death." If jasmine is placed in too shady a place, it definitely will not grow well; the result can only be large leaves, sparse nodes, few flowers, or no flowers at all. Therefore, jasmine must be grown under ample light.
Cultivation method 2 for jasmine, light requirements: Jasmine is a light-loving flower and prefers relatively strong direct light during the growing period. During the bud-setting and flowering period, if it receives more than 8 hours of sunlight per day, the flower buds will be plump and white.
Cultivation method 3 for jasmine, soil selection: Jasmine is especially sensitive to soil permeability, so it is best grown in slightly acidic, fertile sandy loam with strong water- and fertilizer-holding capacity and good permeability. For potted jasmine, choose loose, fertile, slightly acidic potting soil, for example one mixed from 5 parts leaf mold (or peat soil), 4 parts garden soil, and 1 part cake fertilizer residue. When potting, place a small amount of bone meal at the bottom of the pot as base fertilizer. It is best to repot once every year or every other year, replacing it with new culture soil. After repotting, water thoroughly, and pay attention to loosening the soil. Keeping the temperature between 22-24°C can accelerate the sprouting of new buds.
Cultivation method 4 for jasmine, fertilizer selection: Jasmine loves fertilizer and is suitable for growing in fertile, loose, well-structured sandy loam and loam with a pH of 5.5-7. For normally growing potted jasmine, pay attention to pinching back and removing overly dense flower buds and old leaves. To achieve multiple flowering periods, part of any branch that has already flowered must be cut off so that it branches again from new growth. As long as fertilizer and water keep up, it will quickly produce flower buds and bloom again. Sometimes jasmine will show a phenomenon of only growing leaves but not blooming. The main reasons are, first, insufficient light, and second, too much nitrogen fertilizer. Because jasmine needs at least 6 hours of sunlight every day, at the same time pinch back the branches that do not bloom; and second, use less nitrogen fertilizer and more phosphorus fertilizer.
Precautions for growing potted jasmine:
1. Jasmine is a long-day, somewhat sun-loving plant and likes a hot, humid climate. It is sensitive to cold and cannot withstand low-temperature freezing. When the temperature is below 3°C, its tender branches and leaves will suffer frost damage. At a minimum temperature of 0°C with slight frost, most of the leaves will fall off; at around minus 3°C, the branches are at risk of frost damage. For this reason, in places with frost in winter, effectively do a good job of overwintering cold protection and warmth retention and of controlling the moisture in the potting soil.
2. When the temperature drops to 5°C-10°C, move the jasmine indoors and place it at a sunny window; when the temperature is below 0°C, move the potted flowers away from the window at night, so that cold wind does not blow in through the window cracks and freeze the jasmine; when freezing occurs indoors, at night also cover the potted flowers all the way to the bottom with a polyethylene film bag and tie the bag opening tightly, then place the potted flowers in a warmer place. To avoid the danger of the jasmine being suffocated, you can also poke a few small holes in the bag.
3. What to do if jasmine leaves turn yellow? First is watering. Potted jasmine sometimes suddenly has yellow leaves; this is caused by root rot from overwatering, so watering must be strictly moderated. When watering, be sure to take into account conditions such as the current climate, plant size, branch and leaf growth, and pot size. If the potting soil is not too dry, do not water. Keep the potting soil moist, but do not let water accumulate.
4. Jasmine grows relatively fast. Generally repot once a year, mostly indoors in April. Repotting can be combined with division, but try to damage the roots as little as possible. After repotting, place it in a warm, humid place to encourage it to sprout and grow as soon as possible. Promptly remove flower buds.
The above is the relevant introduction in this article. I believe that after reading it, you also have a simple understanding of this. If you need more, you can continue to follow No.1 Home Network to learn more information.