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Breeding methods and pruning techniques of Populus tomentosa in Hokkaido

Published: 2024-09-20 Author: mysheen
Last Updated: 2024/09/20, Euonymus japonicus Hokkaido is a variety of Euonymus tomentosa, which belongs to the family Euonymaceae and belongs to evergreen broad-leaved tree species, native to Japan. Its development is relatively fast, and the annual height development can be up to 170 cm. The tree posture is erect and evergreen at 04:00, and the consequence of entering autumn is of high appreciation value. it is an excellent tree species to increase greening and color in winter in the north.

Euonymus japonicus Hokkaido is a variety of Euonymus tomentosa, which belongs to the family Euonymaceae and belongs to evergreen broad-leaved tree species, native to Japan. Its development is relatively fast, and the annual height development can be up to 170 cm. The tree is erect and evergreen at 04:00, and the consequence of entering autumn is of great appreciation value. it is an excellent tree species to increase greening and color in winter in the north. It can be used as a high hedge and can also be cultivated into isolated, row or group planting of small trees.

(1) do some craftsmanship:

The restriction on the development of Hokkaido boxwood in the north is the freezing injury in winter and the sprouting in spring, but the stronger the plant is, the stronger the resistance is, so the maintenance should be carried out closely around the prevention of frost injury and tapping.

After the soil is thawed in spring and before the new buds germinate, it is placed and irrigated according to the actual soil moisture, so as to ensure that the plants get plenty of water and nutrients before the rapid growth and lasting arrival. The frozen water must be fully watered before the beginning of winter. In addition to root application, some foliar fertilizer can also be used, but it can not be fertilized in the later stage of development, and the time of fertilization should not be later than the middle of July.

Generally speaking, 4-year-old Hokkaido yellow poplar can survive the winter naturally, outdoor development does not need to adopt any protective measures, but the previous seedlings need to adopt the necessary protective measures. All one-year-old seedlings need to spend the winter in a plastic arch shed, and cage-covered grass mats are also needed. Two-or three-year-old seedlings should still build arch sheds in winter without straw mats.

(2) breeding style:

Cutting method:

The materials selected for cutting can be hardwood, twig, single bud and leaf. The bed should be based on the principle of water storage and ventilation without stagnation, the medium should be disinfected with potassium permanganate or carbendazim, and the cuttings should be soaked in rooting water. After insertion, the inserting bed should be compacted and not overwatered.

Sowing method:

The red aril should be removed and dried in real time after seed harvest. The seeds should be stored in sand before sowing, the humidity should not be too high, and the temperature should not exceed 15 ℃. Sowing as early as possible after soil thawing, sowing early rather than late, sowing late, the air temperature rises along the ground temperature, the seeds take root and sprout quickly, the roots are long, and the roots are easy to be broken during sowing, causing damage to the seeds.

Grafting method:

In order to cultivate large size and large quantity seedlings in a short period of time, silk cotton wood can be used as rootstock grafting. Silk cotton roots become rich in the family, the transplanting survival rate is high, the development speed is fast, and it can grow into seedlings with a breast diameter of 5 cm to 6 cm in 3 to 4 years, and the crown of boxwood in Hokkaido is formed early and has strong cold resistance.

(3) pay special attention to:

Shaping and pruning:

The top advantage of Hokkaido boxwood is obvious, and it has few branches, so it is difficult to form a plump crown if it is allowed to develop naturally. In order to cultivate small trees with good crown shape, it is necessary to break its top advantage and expand the crown. When the trunk grows to 1.2 meters to 1.5 meters, it is necessary to truncate its top branches to promote the formation of new branches, and then the new branches continue to develop and form new top advantages, which need to be truncated again to break their top advantages. So again and again, pruning twice a year, the crown expands year by year, and the roots of the small trees with well-shaped crowns are formed in five years. In addition, in order to promote nutritional development, the sturdy Hokkaido boxwood should remove flowers and fruits in real time to avoid nutrient depletion.

Maintenance techniques of several northern evergreen broad-leaved trees

1. Hokkaido boxwood

Euonymus japonicus Hokkaido is a variety of Euonymus tomentosa, which belongs to the family Euonymaceae and belongs to evergreen broad-leaved tree species, which is native to Japan. Its growth is fast, and the annual height growth is up to 170 cm. The tree is tall and straight, evergreen all the year round, and the fruit is of high ornamental value after autumn. It is an excellent tree species to increase greening and color in winter in the north. It can be used as a high hedge and can also be cultivated into small trees planted alone, arranged or planted in groups.

(1) Management technology:

The restricting factors for the growth of Hokkaido boxwood in the north are the freezing injury in winter and the sprouting in spring, but the stronger the plant is, the stronger the resistance is, so the maintenance should be carried out closely around the prevention of freezing injury and sprouting.

Irrigation is arranged according to the actual soil moisture after soil thawing in spring and before new buds germinate to ensure that the plants get sufficient water and nutrients before the rapid growth period. The frozen water must be fully watered before the beginning of winter. In addition to root application, some foliar fertilizer can also be used, but it can not be fertilized in the later stage of growth, and the fertilization time should not be later than the middle of July.

Generally speaking, 4-year-old Hokkaido yellow poplar can survive the winter naturally, and outdoor growth does not need to take any protective measures, but the previous seedlings need to take necessary protective measures. Usually one-year-old seedlings need to spend the winter in a plastic arch shed and cover with straw mats; two-or three-year-old seedlings should still build arch sheds in winter without straw mats.

(2) breeding methods:

Cutting method: the materials selected for cutting can be hardwood, tender wood, single bud and leaf. The sand bed should be based on the principle of water storage and ventilation without stagnation, the medium should be disinfected with potassium permanganate or carbendazim, and the cuttings should be soaked in rooting water. After insertion, the inserting bed should be compacted and not overwatered.

Sowing method: the red aril should be removed and dried in time after seed harvest. The seeds should be stored in sand before sowing, the humidity should not be too high and the temperature should not exceed 15 ℃. Sowing early after soil thawing, sowing early rather than late, late sowing, rising air temperature and soil temperature, fast rooting and sprouting, long roots, easy to break the roots during sowing, causing damage to the seeds.

Grafting method: in order to cultivate large size and large quantities of seedlings in a short period of time, silk cotton can be used as rootstock grafting. Silk cotton has developed root system, high survival rate and fast growth rate, which can grow into seedlings with a DBH of 5 cm to 6 cm in 3 to 4 years, and the crown of Hokkaido boxwood is formed early and has strong cold resistance.

(3) pay special attention to:

Shaping and pruning: Hokkaido boxwood has obvious top advantage and few branches, so it is difficult to form a plump crown if it is allowed to grow naturally. In order to cultivate small trees with good crown shape, it is necessary to break its top advantage and expand the crown. When the trunk grows to 1.2 meters to 1.5 meters, it is necessary to truncate its top branches to promote the formation of new branches, and then the new branches continue to grow to form a new top advantage, which needs to be shortened again to break its top advantage. So repeatedly, pruning twice a year, the crown expands year by year, and the small trees with satisfactory crown shape are basically formed in 5 years. In addition, in order to promote vegetative growth, the flowers and fruits of the fruiting Hokkaido boxwood should be removed in time to avoid nutrient consumption.

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Cultivation method of Populus tomentosa bonsai

Boxwood bonsai

Populus tomentosa, evergreen shrubs or small trees, also known as: Populus tomentosa, thousand-year-old dwarf, Jinshu boxwood, boxwood, Populus tomentosa, Populus tomentosa, Euphorbia tomentosa, Populus tomentosa, Populus tomentosa. Branches dense, branchlets quadrangular, branches and leaves towering on clusters, leaves opposite, leathery, elliptic or Obovate, apex rounded or retuse, base cuneate, surface bright green, abaxially yellowish green. Flowers clustered in leaf axils or branches, open in April, yellowish green, capsule oval, produced in the provinces of central China, the Yangtze River basin and its south, mostly planted in the garden or potted for ornamental.

The main species and varieties of yellow poplar are spoon leaf yellow poplar, also known as sparrow tongue yellow poplar; fish scale yellow poplar, also known as pearl yellow poplar, beautiful tree posture, is a precious tree species for bonsai production.

Poplar bonsai trees are graceful, with leaves as small as beans, thick and shiny, evergreen all the year round, and can be watched all the year round.

The production and cultivation methods of boxwood bonsai:

First, Miao Yuan.

If the seedlings of sowing or cutting propagation are used to make boxwood bonsai, it will take several years to take shape. If the old pile is selected from the mountain to make bonsai, the time is shorter. When digging wild stumps, it is best to trim excessively long roots and dense branches, bring them to the soil, and raise the billet in the open field for 1-2 years and then go to the basin for processing.

Second, modeling.

The shape of yellow poplar is mainly climbing, and it can also be roughly tied and cut. Populus tomentosa branches are hard and thin, climbing should not use wire, it is best to use brown wire. The climbing period is mostly in spring, and pruning can be carried out at any time.

Huang Yang should be inclined dry type, curved dry type and cliff type and so on. In the traditional form of Yangpai bonsai, the branches and leaves of boxwood are made into cloud flakes by fine binding and fine cutting, while in Su bonsai, they are made into steamed bread by coarse binding and fine cutting, each with its own characteristics. Populus tomentosa has strong germination and resistance to pruning, and it can also be processed into a natural tree by pruning. Populus tomentosa germinates quickly and should be pruned frequently. In general, after each new shoot, the first 1-2 sections will be cut off to prevent overgrowth, in order to maintain the beauty of the tree. After fruiting, boxwood should be removed in time so as not to consume nutrients and affect its growth. If the boxwood bonsai is matched with a beautiful stone to make its state more natural and beautiful.

Third, maintenance.

Yellow poplar like light, but also slightly shade-resistant, more cold-resistant, suitable for fertile, moist, loose land, acid soil, neutral soil or slightly alkaline soil can adapt. However, it is better to use fertile, loose, well-ventilated mature pastoral soil or rotten leaf soil mixed with appropriate ridge bran ash culture soil.

Huang Yang should be placed in half-shade, especially in summer. In addition to severe cold areas in winter, you can generally spend the winter outdoors, burying the basin in a place away from the wind and the sun, but the leaf color is often red after frost.

The poplar basin soil should be slightly wet, but not stagnant water. Summer high temperature in addition to shade, but also need to be watered in the morning and evening. The pot change is carried out every 2-3 years, and the time should be before germination in spring or after new shoots are ripe in autumn. When turning the basin, it is appropriate to remove some of the old roots, remove the 1: 2 old soil, and replace it with a larger one basin to facilitate the development of the root system.

Populus tomentosa grows slowly and does not have strict requirements for fertilizer. generally, it can be fertilized 1-2 times in spring and once rotten cake fertilizer and water in autumn.

The main pests of Populus tomentosa are shell insects and large-leaf yellow poplar inchworm. Scale insects can be killed by manual brushing or sprayed with 1500 times of dichlorvos. The big-leaf yellow inchworm is sprayed with 80% trichlorfon sniper powder or 1000-2000 times omethoate.

The main disease of Populus tomentosa is coal fouling disease, which will cause defoliation. The key to control is to remove shell insects, spray foliar water and wash dust frequently.

Deep Mountain Hermit-Pearl Yellow Poplar

Pearl boxwood, living in the dangerous mountains, does not need to climb the hardships and experience the difficulties of thorns, it is difficult to find one side; it is dry and round and muddy, with an air of immortality for a hundred years; its branches are 70% off, which seems to have experienced ups and downs; its leaves are as thin as beads and scales, floating red and green, with the crystal of emerald agate, and the brilliant brilliance of brocade scales, with a unique charm. Throughout the branches, leaves, flowers and fruits of Pearl boxwood, it does not change Ke in winter, leaves do not change in summer, plain flowers are dotted with flowers, and the capsule is unadorned. It can be described as noble and simple, worthy of being a gentleman in the wood and a hermit in the mountains.

Pearl boxwood is a good material for making bonsai stumps. From late autumn to early spring, select plants with good dry branches in the field, dig up the roots with soil, wrap them in wet moss, put them in a plastic bag, and bring them home to pot. According to the shape of the dry branch tree, choose a quaint purple sand basin, drain hole cushion with plastic window screen or brown sheet, and plant with alpine humus soil; when the supine tilt of the dry branch is determined, cut off the excess branches and leaves according to the composition of the whole pile scene, fill the soil in the root, press the soil with your fingers, water it once, and place it in the shady wind. The trunk of pearl boxwood generally takes its natural form and cannot be forced to twist the shape. The twisted traction of the branches was carried out after the plant survived. Most of them use thin copper wire to twist the branches or pull them to obtain the most satisfactory level and composition. In the growing season, you should often pick the heart, leaving only 2 leaves at a time to promote the germination of lateral buds and make them grow luxuriantly, just like natural.

Pearl boxwood is not difficult to maintain. Irrigation water to river water, pond water, pond water is better, it is best to add a little ferrous sulfate to improve the acidity of the water, the concentration is about 0.05%. Pearl boxwood often grows in a foggy environment and needs scattered light to avoid exposure to the summer sun. In the heat of summer, it should be placed in a cool and ventilated place under the shade, and water is often sprayed on the leaves to improve the air humidity around the plant. Pearl yellow poplar does not like big fertilizer, generally apply rotten thin cake fertilizer once a month as can, avoid urea and other high concentration chemical fertilizer, hot summer can not apply fertilizer. The leaves of Populus tomentosa are easy to be damaged by leaf-eating pests. Once found, they should be caught and killed in time, or sprayed with low concentration of trichlorfon, dimethoate solution and other pesticides.

The seedlings of Populus tomentosa can be used to decorate mountain and stone bonsai and make miniature bonsai. If you need to use seedlings to decorate rockery or make small bonsai, you can take 1-2-year-old twigs before early spring, grow 10 to 15 cm, cut off the lower leaves, insert them into sandy loam or forest humus, often water to keep moist, and take root in about a month; the following spring can be used to decorate rockery and make miniature bonsai.

Euonymus tomentosa (Euonymus holly)

Aliases: Holly spear, Masagi, Fufang tree, Sijiqing, Qilixiang, Japanese spear.

Evergreen shrubs or small trees, to 5 m tall; branchlets subquadrangular. Leaf blade leathery, surface glossy, Obovate or narrowly elliptic, 3mur6cm long, 2MUE 3cm wide, apex pointed or obtuse, base cuneate, margin serrulate; petiole ca. 6mur12 mm. Flowers green-white, 4-numbered, 5-Mel 12 arranged in dense Cymes, axillary. Capsule subglobose, with 4 shallow grooves, ca. 1 cm in diam.; seeds brown, aril orange-red. The flowering period is from June to July, and the fruit ripening period is from September to October.

Euonymus tomentosa is a temperate and subtropical tree species, produced in the central and northern provinces of China, the cultivation is very common, it is also distributed in Japan. Like light, but also more resistant to shade. Like warm and humid climate is also more hardy. It requires rich and loose soil, which is extremely resistant to pruning and shaping.

The experiment of Jiangsu Botanical Research Institute showed that this species had strong resistance to sulfur dioxide. Propagate with cuttings or cuttings. There are many varieties cultivated, and the common ones are silver-edged holly spear with white leaf edges. Phnom Penh holly spear, leaf edge yellow. The golden heart holly spear has yellow spots on its leaves and yellow on the ends of some branches. Spotted holly spear, large leaf shape, bright green, yellow leaf surface.

Euonymus tomentosa is commonly used for cutting propagation, and the cuttings take root quickly in the rainy season. Select semi-lignified mature branches, 12-15 cm long, insert into the seedbed of sand and soil, and take root 20-25 days after insertion. Seedling transplanting is mostly carried out from March to April in spring, and large seedlings need to be transplanted with soil. The main management work is pruning and plastic surgery. After pruning, the branches are very easy to grow, so they need to be pruned many times a year to maintain a certain tree shape.

The insect pests of Euonymus tomentosa are harmful to the leaves of Populus tomentosa, Spodoptera litura and Populus tomentosa, so attention should be paid to the control. Shell insects can be controlled with 20 times of turpentine mixture, and diamondback moth and yellow spot moth can be controlled with 1000 times of omethoate or isocarbophos in larval stage.

Yellow poplar with silver edge

Alias Yinbian holly spear

It is a variety of Euonymus holly.

The difference with the original species is that the leaf margin is yellow and white.

Korean yellow poplar

Distribution of origin: Jinzhou, Fushun, Anshan, Dalian, Xiongyue and Shenyang are cultivated in Liaoning Province.

Populus tomentosa has dense branches, branchlets subquadrangular, gray, twigs green or brownish green. Leaves elliptic, ovoid or long elliptic, leathery, entire, apex retuse, base cuneate, leaf surface dark green, abaxially light green. Petiole, dorsal midvein densely hairy. Flower clusters borne in leaf axils, or terminal. The flowering period is in the middle and late April. Capsule 3-loculed, with 2 black glossy seeds per locule. The fruit ripening period is from late July to early August.

Korean yellow poplar is a relatively cold-tolerant tree species in Populus tomentosa family, and the seedlings of more than 5 years old are basically free from freezing damage in Shenyang open field. It is a positive tree and prefers light. It can also grow normally under proper shading conditions. I can't bear to get wet.

Korean yellow poplar is a good bonsai and hedge tree species, which can be trimmed and shaped for garden viewing. Its material is hard and delicate, so it is suitable for carving.

Populus tomentosa

Populus tomentosa is a creeping dwarf shrub, branchlets sparsely puberulent or subglabrous, usually twisted. The leaf and fruit are small, the leaf length is only 1 Mel 1.4 cm, usually less than 1 cm, and the fruit diameter is only 6 mi 7 mm. The florescence is from February to March and the fruiting period is from August to September.

Distribution and habitat: producing Dali, Lijiang, Zhongdian, Yongning and other areas, on limestone with an elevation of 3000mi 3600 m. It is also produced in the southeast of Xizang and the western Himalayas.

Hokkaido boxwood

Four seasons evergreen Hokkaido boxwood is a tree species introduced from Japan by the Chinese Academy of Forestry Sciences in the mid-1980s. It is an evergreen broad-leaved tree of Celastraceae. It is cold-resistant, drought-resistant, and can stay green at minus 23.9 degrees Celsius. The tree is tall, tall and straight, evergreen all the year round, leaves green and fruit red in winter, and a large number of seedlings. Each 20 cm tall seedling can be fried to more than 20 yuan in Beijing. In recent years, it can only be sold and propagated among nurseries around the country, not directly greening. Therefore, a few years later, its seedling sales are bound to increase sharply. According to relevant sources, in the future, Beijing, Tianjin and other cities should change the traditional mode of urban greening, develop to a high level, and mainly use evergreen and pollution-free greening and beautification tree species in the four seasons. Hokkaido boxwood is an indispensable tree species.

(1) morphological characteristics of Hokkaido boxwood: Populus tomentosa is an evergreen tree, up to 8-10 meters high, with leathery leaves, dark green on the front and light green on the back. The leaves are ovate or long oval, 5-6 cm long, 4-5 cm wide, the leaf margin is shallow wavy, and the petiole is about 1 cm long. The flower is light yellow, the diameter is 0.1-1 cm, the capsule is nearly spherical, there are 4 shallow grooves, the diameter is 1-2 cm, the fruit is light green when the fruit is tender, the sunny side is brown-red, the seed is nearly spherical, it matures in November, the pericarp automatically cracks when it is mature, and the seeds that orange-red chase the seed coat are exposed, full of red fruit and green leaves, long-distance view, interesting and pleasant scenery.

(2) Biological characteristics of Hokkaido boxwood: Hokkaido boxwood is light-loving, shade-tolerant, warm and humid. Relevant data show that when the absolute lowest temperature in Zapuo City, Japan is-23.9 degrees Celsius, Hokkaido boxwood is safe and sound. The annual average seedling height is 1 meter to 1.8 meters, the three-year-old seedlings can reach 3.5 meters, and the ground diameter is more than 3 centimeters. The growth of seedlings is especially obvious in the first three or four years, and the number of branches is relatively small. After 5 years, they enter the early fruiting stage, and 6 to 8 years enter the fruiting peak period.

(3) Disease resistance: Japanese Beihaishou yellow poplar has strong resistance to powdery mildew and black spot.

Populus tomentosa

Alias: spoon leaf yellow poplar

Morphological features: evergreen dwarf shrubs, many and dense branches, clumps. The leaf shape is long, oblanceolate or Obovate-oval, the top is obtusely round and slightly concave, the surface is green and bright, and the petiole is very short.

Populus tomentosa growth habits: like warm, humid and sunny environment, resistant to drought and semi-shade, requiring loose, fertile and well-drained sandy loam. Weakly positive, pruning resistant, cold resistant, pollution resistant

Propagation and cultivation of Populus tomentosa: mainly by cutting and striping propagation. Cuttings are best carried out in the rainy season, selecting twigs as cuttings, 10-12 cm long, and rooting 40-50 days after cutting. The striping was carried out from March to April, was pressed into the soil with biennial branches, and was separated from the mother plant in the next spring. Before transplanting, sufficient basal fertilizer should be applied to keep the soil moist during the growing period. Fertilize once a month and prune to maintain a certain height and form of the tree. Potted plants should be carried out in spring, autumn or plum rain season, fertilizer and water should be controlled and plant shape should be controlled by pruning.

Landscape uses: Populus tomentosa has luxuriant branches and leaves, unique leaf shape, evergreen four seasons, often used in hedges, flower beds and potted plants, trimmed into various shapes, and is a good material for decorating small courtyards and entrances.

Golden mature yellow poplar (narrow leaf yellow poplar)

Shrubs, ca. 1 Mel 1.5 m tall; branchlets subquadrangular, yellowish green, striate, subglabrous. Leaves leathery, long ovate or ovate-oblong, 1.5 mi 2 cm long, 1 mi 1.2 cm wide, apex rounded, occasionally retuse, base cuneate, leaf surface dark green bright, midvein raised, dorsally pale, midvein flattened, initially finely hairy, lateral veins inconspicuous on both surfaces; shortly stipitate, sparsely hairy. Racemes axillary. Male flowers: sepals 4, imbricate, 2-whorled; outer whorl ovoid, 2 mm long, membranous, concave, dorsally sparsely pilose, inner whorl suborbicular, 2 mm long, nearly 2 mm wide, inner concave, margin not ciliate; stamens 4, 3 mm long, slightly longer than sepals; anthers elliptic, tip not apical, dorsally inserted; sterile pistil rod-shaped, as long as 2x3 of sepals, tip dilated. Female flowers: 6 sepals, arranged in 2 whorls; ovary 3-loculed, style 3, stigma obcordate. Capsule globose, 3 loculicidally dehiscent. The seed is black and bright. The florescence is from January to February and the fruiting period is May.

Jinshu Populus tomentosa is a shade-tolerant tree species, not suitable for direct sunlight, like warm and humid climate. It is suitable to grow in well-drained, deep and fertile soil. Resistant to drought, avoid low-lying stagnant water, more cold-resistant. Originally from Central Europe, Southern Europe to Caucasus. Commonly cultivated as hedges. It is suitable to be used as a hedge in the garden or planted at the edge of the flower bed. it can also be planted alone in the lawn, in clusters and by the roadside. Embellished with rocks, or as potted plants, bonsai, for indoor greening.

The discolored golden leaf yellow poplar belongs to the Populus tomentosa family, which is a variant of Jinshu boxwood, evergreen shrub. Its leaves are bright yellow in spring and autumn, more yellow than rape flowers, orange in winter and bright yellow in summer. The leaves are oval, leathery, waxy and shiny; especially in the spring and autumn, the leaves are glittering and beautiful in the sun. Yellow poplar with discolored golden leaves is light-loving, shade-tolerant, but not resistant to water stains. If long-term stagnant water will cause part of the roots to suffocate to death, the leaves become withered yellow, affecting the ornamental effect. The yellow poplar with discolored golden leaves grows at a medium growth rate. In southern Jiangsu, it takes only 2 years to grow from a seedling of 10 cm to a ball of 25 mi 30 cm. The discolored golden leaf boxwood has no strict requirements on the soil, and the general soil can grow well, but the well-drained and fertile soil is the best. The discolored golden leaf boxwood has no disease, but it has insect pests, and the damage period is from May to early October every year. It is drought-resistant and cold-resistant, and it can grow well wherever Populus tomentosa can grow. We have successfully planted it in Lanzhou and Beijing. Discolored golden leaf boxwood, the management is more extensive, as long as pay attention to drainage in the rainy season, pay attention to pest control from May to October, often fertilize.

The discolored golden leaf boxwood does not blossom or bear seeds, so it can only be propagated by cutting. Cuttings choose just woody branches, which can take root in a month. The soil used in the nursery should be turned over and dried repeatedly, then mix well with the rice chaff ash of 1 stroke and 3, and make it fine and flat. The seedbed is generally 25ml 30cm high and 100cm wide. The cutting time is generally available from March to October. Cover sunshade net after planting in spring and autumn; high and low sunshade nets are needed for cutting in summer to prevent the loss of water from twigs and affect survival. Overwintering seedbed should be covered with plastic film, especially for newly rooted seedlings or cuttings that have not yet taken root, which is an essential measure.

In the greening project, the discolored golden leaf boxwood should be used as a hedge, color block, or put together into other patterns, and the big ball can be used as a scenic spot. In the hands of bonsai masters, discolored golden leaf boxwood is still an excellent material for making bonsai.

The discolored golden leaf boxwood has five advantages compared with the golden leaf privet.

First, the discolored golden leaf boxwood is very beautiful all the year round, while the golden leaf privet has an ugly color from late autumn to the early spring of the following year, even in a state of semi-deciduous leaves in the north.

Second, the golden leaf privet is easy to suffer from black spot, while the discolored golden leaf boxwood is disease-free and easy to manage.

Third, the growth rate of Ligustrum lucidum is too fast, which needs more manual pruning, while the discolored golden leaf boxwood only needs to be pruned 1 Mel twice a year.

Fourth, the discolored leaves of Euonymus tomentosa are leathery, rich in wax and glossy, while the golden privet is not.

Fifth, the discolored golden leaf boxwood is cold and drought tolerant, adaptable and does not shed leaves in winter, while the golden leaf privet is in a deciduous or semi-deciduous state in the north and northwest, and the leaves will be rolled up a little early, affecting the beauty.

The discolored golden leaf boxwood is of high grade, beautiful color, easy to manage and strong adaptability, so it will be more and more widely used in the landscaping project in the future.

 
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