How to prune Sorbaria sorbifolia? Root branches and flowering branches should be pruned appropriately
Sorbaria sorbifolia is a fairly common plant in people's lives, with high ornamental value. However, during its growth, Sorbaria sorbifolia will develop some dead branches and rotten leaves, which greatly affects its appearance, so we need to prune it. So how do you prune Sorbaria sorbifolia? Below, the editor will guide everyone through it
Sorbaria sorbifolia is a fairly common plant in people's lives, with high ornamental value. However, during its growth, Sorbaria sorbifolia will develop some dead branches and rotten leaves, which greatly affects its appearance, so we need to prune it. So how do you prune Sorbaria sorbifolia? Below, the editor will guide everyone through it.
I. How to prune Sorbaria sorbifolia
Regarding how to prune Sorbaria sorbifolia, there are actually many steps, such as root pruning, branch pruning, flowering branch pruning, and other aspects. The specific pruning methods are described in detail below, and interested friends can take a look.
II. Pruning methods for Sorbaria sorbifolia
1. Root pruning
Regarding how to prune the roots of Sorbaria sorbifolia, the method is actually very simple. During its growth, we can appropriately prune its lateral roots, cutting off excess roots, rotten roots, and diseased roots. After pruning is completed, replant it. This allows Sorbaria sorbifolia to grow better.
2. Branch pruning
During the growth of Sorbaria sorbifolia, pruning its branches is a very important step. So how do you prune the branches of Sorbaria sorbifolia? The method is actually very simple. When pruning, we should keep 3 to 5 buds on the branch and cut off all the remaining parts. The benefit of this pruning is that it allows Sorbaria sorbifolia to maintain a good plant shape and also helps with ventilation and light penetration.
3. Pruning before flowering
Before Sorbaria sorbifolia blooms, we need to appropriately prune its flowering branches. This can promote branching, lay a good foundation for Sorbaria sorbifolia's flowering, and allow it to produce more beautiful flowers.
4. Pruning after the flowering period
After the flowering period of Sorbaria sorbifolia, the flowers will gradually wither. At this time, there will be many remaining flowering branches on the plant. We need to prune them off so that it can grow new branches the following year and prepare for flowering the next year.
How to prune Sorbaria sorbifolia
Pruning Sorbaria sorbifolia - roots
When pruning Sorbaria sorbifolia, one task is to prune the roots.
When planting Sorbaria sorbifolia, the lateral roots can be appropriately pruned, cutting off some excess roots, rotten roots, and diseased roots, and then replanting it. This allows it to grow better.
Pruning Sorbaria sorbifolia - branches
Pruning branches is the most important operation among pruning tasks. Its growth vigor is very strong, so attention should be paid to pruning. Pruning branches can help it maintain good growth and is beneficial to both the flowering and growth of Sorbaria sorbifolia.
When pruning branches, for perennial old plants, heavy pruning can be carried out at 4 or 5 years. The pruning time is generally before spring sprouting. Keep 3 to 5 buds on the branch and cut off all the remaining parts. In addition, pruning can also be carried out after the leaves of Sorbaria sorbifolia fall, removing residual branches, dead branches, diseased branches, and so on. Some overly old branches, overly dense branches, and leggy branches can all be pruned. Those that should be cut off should be cut off, and those that should be shortened should be shortened. The benefit of this pruning is that it allows Sorbaria sorbifolia to maintain a good plant shape and helps with ventilation and light penetration.
Pruning Sorbaria sorbifolia - flowering branches
Appropriately pruning the flowering branches of Sorbaria sorbifolia is beneficial for better flowering.
After the flowers of Sorbaria sorbifolia fade, cutting off the remaining flowering branches can reduce the consumption of water and nutrients. In addition, if daily pruning is reasonable, it also helps Sorbaria sorbifolia bloom.
Sorbaria sorbifolia (L.) A. Br. Sorbaria sorbifolia profile: how to grow Sorbaria sorbifolia / how to propagate Sorbaria sorbifolia
Sorbaria sorbifolia profileSorbaria sorbifolia (L.) A. Br.
Sorbaria sorbifolia cultivation methods and precautions, introduction to Sorbaria sorbifolia
Sorbaria sorbifolia is native to northern Asia and is distributed in China in Hebei, Gansu, Shandong, Shanxi, Inner Mongolia, Jiangsu, and other places. It is a shrub-type, deciduous broadleaf shrub plant. It likes sunlight and also has strong shade tolerance, is cold-tolerant, moisture-tolerant, and drought-tolerant. It is not demanding about soil and can grow normally in ordinary soil, while growing more vigorously in moist, fertile soil. It grows quickly, has strong suckering ability, and is tolerant of pruning.
Spiraea thunbergii is a plant in the Rosaceae family, Sorbaria genus. It gets this name because its flowers are dense and all white when blooming. Because its leaves resemble willow leaves and its flowers are white like snow, it is also called "snow willow." Sorbaria sorbifolia is mostly planted as a single plant in gardens and courtyards. Generally, no fertilization is necessary, but it must be watered frequently. Especially during dry periods in spring and summer, the soil must be kept moist.
Before winter, water thoroughly with winter water. In high-cold regions, it should be protected for overwintering. Other management is relatively extensive. Sorbaria sorbifolia has full clumps and elegant branches and leaves. Its value lies in producing elegant white flowers in midsummer when flowers are scarce, and its flowering period is very long. In particular, it has killing or inhibitory effects on many harmful bacteria and is suitable for planting in various types of garden green spaces. Especially because of its shade tolerance, it is a flowering shrub species for greening the north side and shaded areas of high-rise buildings and various structures in northern cities.
Morphological characteristics of Sorbaria sorbifolia
Sorbaria sorbifolia is a shrub, up to 2 m tall, with spreading branches; branchlets cylindrical, slightly flexuous, hairless or slightly pubescent, green when young, dark reddish brown or dark yellowish brown when old; winter buds ovate, apex rounded and obtuse, hairless or slightly pubescent at the tip, purplish brown, with several alternate exposed scales.
Pinnately compound leaves, leaflets 11-17, together with petiole 13-23 cm long, 10-13 cm wide, leaf rachis slightly pubescent; leaflets opposite, 2-2.5 cm apart, lanceolate to ovate-lanceolate, 5-7 cm long, 1.8-2.5 cm wide, apex acuminate, rarely caudate, base nearly rounded or broadly cuneate, rarely oblique, margin with sharp double serrations, both surfaces hairless or nearly hairless, pinnate reticulate veins, with 12-16 pairs of lateral veins, conspicuous abaxially; leaflets sessile or nearly sessile; stipules herbaceous, ovate-lanceolate to triangular-lanceolate, apex acuminate to acute, margin irregularly serrate or entire, 8-13 mm long, 5-8 mm wide, slightly pubescent outside.
Terminal large dense panicle, branches nearly erect, 10-20 cm long, 5-12 cm in diameter, peduncle and pedicels stellate-hairy or pubescent, gradually falling off in fruit stage, nearly hairless; bracts ovate-lanceolate to linear-lanceolate, 5-10 mm long, 3-5 mm wide, apex long acuminate, entire or with shallow teeth, slightly pubescent on both surfaces, gradually falling off in fruit stage; pedicels 5-8 mm long; flowers 10-12 mm in diameter; calyx tube campanulate, slightly pubescent at base outside; sepals triangular-ovate, apex obtuse or acute, sepals about equal to calyx tube in length; petals oblong or obovate, 5-7 mm long, 3-5 mm wide, white; stamens 40-50, about 1.5-2 times longer than petals, inserted at edge of disc; carpels 5, hairless or slightly pubescent.
Follicles oblong, with terminal curved style, about 3 mm long, fruiting pedicels erect; sepals persistent, reflexed, rarely spreading. Flowering period July-August, fruiting period September.
Ecological habits of Sorbaria sorbifolia
Sorbaria sorbifolia is cold-tolerant, semi-shade tolerant, and tolerant of pruning. It grows better in well-drained sandy loam. It grows quickly and suckers easily, making it a good summer flowering plant.
Most plants in the Rosaceae family are sun-loving, and Spiraea thunbergii is no exception. It likes sunlight and tolerates certain waterlogged and wet environments, but is not suitable for long-term water accumulation. It is not demanding about soil and tolerates a certain degree of salinity and alkalinity, making it suitable for growth in the Shanghai area.
Cultivation techniques for Sorbaria sorbifolia
Sorbaria sorbifolia has strong adaptability and does not have high fertilizer requirements. Apart from applying a small amount of base fertilizer when newly planted, no further fertilizer is needed afterward, but watering is required. Generally, water thoroughly 2-3 times from leaf bud break to flowering. After the Start of Autumn to before frost, water 2-3 times, including 1 antifreeze watering. In summer, water according to drought conditions; when there is a lot of rain, watering is unnecessary. After the flowers fade, the inflorescence turns yellow and affects appearance, so the remaining inflorescence should be cut off to keep the plant clean and tidy and to avoid the remaining inflorescence competing with the plant for nutrients and water. After autumn or in early spring, diseased and pest-infested branches and old weak branches should also be cut off. Annual branches can be heavily pruned to promote branch renewal and lush flowers and leaves.
① It is not demanding about soil, but cultivation in deep, fertile sandy loam results in better growth and more abundant flowering.
② It does not have high fertilizer requirements. When first cultivated, sufficient base fertilizer should be applied to meet its growth requirements, and generally no additional topdressing is needed. Afterward, combined with winter management, applying base fertilizer once every 1-2 years is sufficient.
③ In spring during drought, water in time. During summer and autumn droughts, water thoroughly to keep the soil from becoming dry; before winter, water once with antifreeze water.
④ After flowering, promptly prune off remaining flowering branches, diseased and pest-infested branches, and old weak branches to keep the plant shape neat, avoid nutrient consumption, and promote robust growth with lush flowers and leaves.
Propagation methods for Sorbaria sorbifolia
Propagation of Sorbaria sorbifolia is mainly by division, and it can also be grown from seed. However, because the seeds are very small, the seeding method is mostly not used. Division propagation is generally carried out before spring bud break or after leaf fall in autumn. Dig out the suckering shoots clustered at the base of the plant together with roots, take 3-5 plants as a clump, and replant separately.
When planting, apply 2 shovelfuls of compost in the hole as base fertilizer, and water thoroughly after planting. Afterward, water about once a week until it survives. Plant clumps over 5 years old can grow into a very large crown width. In early spring before sprouting, dig away the soil around the old clump, then cut each root sucker shoot away from the mother plant and dig it out, move it to a nursery for cultivation, and after 1 year it can become a seedling ready for outplanting. When propagating seedlings in large quantities, the seeding method can be used. Store seeds dry and sow in spring the following year.
Division propagation
During its growth, Sorbaria sorbifolia has the characteristic of easily sprouting root suckers, so division propagation can be carried out in early spring in March or April. Select robust plants with no pests or diseases and many tillers as mother plants.
The method is: dig open the soil around the roots of a mother plant over 5 years old, insert a knife from the middle of the gap, and separate the tillers from the mother plant. Each clump can be divided into 5 to 7 plants. The separated root sucker seedlings must have complete roots. If the lateral roots of the root sucker seedlings are thin and numerous, some should be appropriately cut off when planting. This propagation method has a high survival rate, forms quickly, and is relatively simple to manage, but the number propagated is limited. After division, water thoroughly and move the plant to a slightly shaded place. After one week, gradually place it in sunlight for normal care.
Cutting propagation
This method is suitable for large-scale propagation and can be carried out all year round, but cuttings root fastest in March and October, with a high survival rate. For the cutting soil, generally use 5 parts garden soil, 4 parts humus soil, and 1 part sandy soil, mix and make trenches and beds for open-field cuttings. For cuttings, choose current-year or biennial mature branches from robust plants, cut them into 15 to 20 cm lengths, and keep 4 to 5 buds or leaves. When inserting cuttings, insert 2/3 of the cutting into the soil, leaving only the top one or two buds or leaves above the soil surface. The cut end of the cutting should be flat, cut into a horseshoe shape, inserted as soon as cut, press down the soil at the base of the cutting, and water thoroughly once. After that, spray water 1 to 2 times daily, always keeping the soil moist. After 20 days, reduce the frequency of water spraying to prevent excessive moisture from causing branch rot. After about 1 month, they can root and be transplanted.
Layering propagation
In March or April, bend branches from the outer part of the mother plant directly into the soil. The part pressed into the soil can also be ring-barked or wounded to promote rapid rooting. After new roots grow, separate from the mother plant and transplant during the spring or autumn planting season.
Disease control for Sorbaria sorbifolia
After the plants have grown, pest and disease control work should be carried out promptly. Early control should be achieved to promote healthy plant growth. The main diseases of Sorbaria sorbifolia include: leaf spot, powdery mildew, and brown spot. The main insects to prevent and control include: scarab beetles, spotted leafhoppers, and so on.
Leaf spot
When the disease occurs, round or irregular brown spots appear on the leaves, and brown mold-like material is sparsely produced on the spots on the back of the leaves.
Control method: spray with a 500-800 times diluted solution of 50% thiophanate-methyl.
Powdery mildew
When the disease occurs, white or grayish-white flour-like material appears on the leaves. In severe cases, young tips curl, leaves become uneven, and they fall off early. Flowers are small and do not open, and flower form is deformed, curled, and withered.
Control methods:
1. In late autumn, remove diseased and remnant plants to reduce sources of pathogens;
2. Pay attention to ventilation, reduce air humidity, strengthen light, apply more phosphorus and potassium fertilizer, and enhance resistance;
3. After disease occurs, promptly prune off affected parts, or pull out diseased plants and burn them;
4. Spray chemicals. During the dormant period, spray equal-strength 1% Bordeaux mixture. In the early stage of disease, spray 70% thiophanate-methyl 800 times solution or 50% amobam 800-1000 times solution.
Brown spot
Sorbaria sorbifolia brown spot mainly damages leaves. At first, brown round to irregular lesions are scattered on the leaf surface, with darker edges and obvious boundaries with healthy tissue. Later, sparse small dark brown to blackish-brown mold spots, namely the pathogen fruiting bodies, grow on the back of the leaves. The pathogen overwinters as mycelium or conidia on affected leaves, and the following year produces conidia that spread by wind and rain to neighboring plants. Generally, the disease is likely to occur when tree vigor is weak or ventilation is poor.
Control methods
(1) From July to September, spray 65% zineb wettable powder 600 times solution or 70% mancozeb wettable powder 500 times solution, 25% benomyl emulsifiable concentrate, or 12% copper green emulsifiable oil 600 times solution
(2) Strengthen management and improve disease resistance.
(3) In late autumn and early winter, collect diseased leaves and burn them in a centralized manner to reduce the source of pathogens the following year.
Scarab beetles
Small green flower scarab beetles and others bite and feed on leaves, buds, and flowers, causing leaves to become incomplete.
Control methods:
1. Taking advantage of the adult insects' death-feigning behavior, shake branches in the early morning or evening to capture and kill them;
2. During the adult occurrence period, spray 40% omethoate 1000 times solution, or 50% malathion 1000 times solution.
3. Taking advantage of the adults' habit of entering the soil, scatter 2.5% phosmet powder around the plant, then loosen the surface soil after application, so that adults contact the pesticide and die from poisoning.
Spotted leafhopper
Adults and nymphs often gather on the backs of young leaves to pierce and suck sap. Affected leaves develop symptoms such as perforation, rupture, curling, or thickening depending on leaf age.
Control methods:
1. In winter, prune off overly dense branches and dead branches and burn them to reduce insect sources;
2. During the peak occurrence period of adults, insect nets can be used to capture and kill them;
3. During the damage period of nymphs and adults, spray 90% trichlorfon 1000 times solution, or 40% dimethoate emulsion 1200 times solution for control.
Distribution areas of Sorbaria sorbifolia
Native to China and Japan. In China, it is mainly distributed in Zhejiang, Jiangxi, Yunnan, and other provinces. It is distributed in Hebei, Shanxi, Shandong, Henan, Shaanxi, Gansu, and Inner Mongolia.
Sorbaria sorbifolia is native to northern Asia and is distributed in China in Hebei, Henan, Shaanxi, Gansu, Shandong, Shanxi, Inner Mongolia, and other places. It likes sunlight and also has strong shade tolerance, is cold-tolerant, moisture-tolerant, and drought-tolerant. It is not demanding about soil and can grow normally in ordinary soil, while growing more vigorously in moist, fertile soil. It is commonly cultivated in garden green spaces and residential courtyards in northern China. It grows quickly, has strong suckering ability, and is tolerant of pruning. The method of removing old branches can be used to alternate old and new and continuously renew and rejuvenate it. During the growing season, if seeds are not being collected, the remaining flowering branches should be cut off at any time after flowering to maintain a perfect plant shape.
Distribution areas: North China region, Northwest China region. It is also distributed in the Soviet Union, Korea, Japan, and Mongolia.
Liaoning, Jilin, Heilongjiang, Inner Mongolia. It grows in sparse mountain forests at an altitude of 250-1500 m. It is also distributed in the Soviet Union, Korea, Japan, and Mongolia.
It is distributed in Hebei, Jiangsu, Shanxi, Shandong, Henan, Shaanxi, Gansu, and Inner Mongolia.
It likes light and is also shade-tolerant, cold-tolerant, very robust, and not selective about soil. It has strong suckering ability and is tolerant of pruning. It grows rapidly.
Variety classification and related varieties of Sorbaria sorbifolia
The stellate-hairy variety of Sorbaria sorbifolia is also called stellate-hairy Sorbaria sorbifolia (Illustrated Flora of Woody Plants of Northeast China) and spike-shaped Sorbaria sorbifolia (Botanical Dictionary). Its inflorescence and leaf rachis are densely covered with stellate hairs, the leaf backs have sparse stellate hairs, and the fruit has sparse short pubescence.
Mostly produced in Jilin and Heilongjiang. Mostly grows in mountain shrub thickets at an altitude of 250-300 m. Distributed in Korea.
A species closely related to this species is Sorbaria sorbifolia var. with dense veins. Native to China; the type specimen was collected from cultivated plants at the Arboretum de Vilmorin in France. According to literature records, the differences between Sorbaria sorbifolia var. with dense veins and Sorbaria sorbifolia are that it has fewer stamens (20) and leaflets with more than 25 pairs of lateral veins. However, the difference from Sorbaria kirilowii was not indicated, and the type specimen has not been seen.
Medicinal or dietary therapeutic value of Sorbaria sorbifolia
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Medicinal value
[Source] Rosaceae Sorbaria genus plant Northeast Sorbaria sorbifolia (L.) A. Brown, using stem bark, branches, and fruit spikes as medicine. In spring and autumn, collect the outer bark of stems and branches and dry in the sun; in autumn and winter, pick fruit spikes, dry in the sun, and grind into powder.
[Nature, flavor, and meridian tropism] Bitter, cold. Toxic.
[Functions and indications] Invigorate blood and dissipate stasis, reduce swelling and relieve pain. Used for fractures, bruises and injuries, red, swollen, and painful joint sprains, and rheumatoid arthritis. [12]
[Usage and dosage] Stem bark and fruit spikes 1-2 g, ground into powder and swallowed; branches 15-25 g, decocted in water. For external use, an appropriate amount ground into powder and applied to the affected area.
[Notes] (1) Poisoning has symptoms such as nausea and vomiting. For mild cases, take licorice water; for severe cases, provide symptomatic treatment.
[Excerpt] "Compilation of National Chinese Herbal Medicines"
Uses and purposes of Sorbaria sorbifolia: ornamental value
Sorbaria sorbifolia gets its name because its flowers resemble pearls. Sorbaria sorbifolia is pretty yet elegant, standing proudly in frost and snow,
In autumn, when all flowers have withered and sandstorms are severe, it alone stands out, becoming a beautiful symbol of strength, courage, and the willingness to struggle against difficulties, and becoming a companion that inspires people's hearts. In China, there is a tradition of loving plum, planting plum, and appreciating plum, regarding plum as a symbol of uprightness and unyieldingness. The tree is 4.6 m tall with a crown width of 6.5 m. It blooms in July and August every year, with a refreshing fragrance, becoming a beautiful and indispensable scenery in people's lives.
Landscape uses of Sorbaria sorbifolia
The flowers and leaves of Sorbaria sorbifolia are elegant. Its flowering period is very long and falls in the summer season when few flowers bloom. It is a very popular ornamental tree species in landscape applications and can be planted as a specimen, in rows, or in clumps with very good effects.
Sorbaria sorbifolia is mostly planted as a single plant in gardens and courtyards. Generally, no fertilization is necessary, but it must be watered frequently. Especially during dry periods in spring and summer, the soil must be kept moist. Before winter, water thoroughly with winter water. In high-cold regions, it should be protected for overwintering. Other management is relatively extensive. Sorbaria sorbifolia has full clumps and elegant branches and leaves. Its value lies in producing elegant white flowers in midsummer when flowers are scarce, and its flowering period is very long. In particular, it has killing or inhibitory effects on many harmful bacteria and is suitable for planting in various types of garden green spaces. Especially because of its shade tolerance, it is a flowering shrub species for greening the north side and shaded areas of high-rise buildings and various structures in northern cities.
Flower language of Sorbaria sorbifolia
Flower language of Sorbaria sorbifolia: friendship, effort.
Pictures of Sorbaria sorbifolia