Holly likes fertile soil and grows well in moist and well-drained acid soil. The requirements for soil are not strict, and the general soil can grow well.

Light and temperature

Holly likes warm climate and has strong cold tolerance. The suitable temperature for the growth of Ilex is-10℃~ 30℃, and it can tolerate low temperature in winter. But in summer, in order to avoid high temperature, shading measures should be taken, or ventilation should be strengthened to spray water on plant leaves to cool down. In terms of light, holly can tolerate shade, and when the light is particularly strong in summer, it is necessary to shade it and avoid strong light.

Water fertilization

The growth of Holly needs to ensure sufficient water supply to keep the basin soil moist, especially in the vigorous growth period of spring and autumn. In summer, the temperature is high, the evaporation is large, and the soil in the basin will be dry. It is necessary to water regularly and spray water on Ilex plants to keep the air humidity. Fertilization generally does not need to be too diligent. Appropriate topdressing can be done once or twice in the spring and autumn season, and nitrogen fertilizer and dilute liquid fertilizer are the main fertilizers.

Type of Ilex: Ilex 1 species: Star tree (Ilex plum)

Deciduous shrub, 3 meters high. There are long branches and short branches, the branchlets are hairless, green, brown after drying, with obvious white lenticels, and the long branches are slender.

Produced in Xianju, Longquan, Qingyuan, Taishun and other places. Born in valleys, roadside shrubs or broad-leaved forests at an altitude of 400~ 1000 meters. Distributed in Jiangxi, Fujian, Taiwan Province, Hunan, Guangdong and Guangxi.

Roots used as medicine have the effects of clearing away heat and toxic materials, reducing swelling and removing blood stasis; Leaves contain ursolic acid, which has certain curative effect on coronary heart disease and angina pectoris.

Two species of Ilex: Ilex banyan.

Evergreen trees, height12m. Branchlets yellowish brown or reddish brown, glabrous.

Leaf leathery, produced in Hua Kai, Xianju, Linhai, Suichang, Songyang, Longquan, Qingyuan, Yunhe, Jingning, Jinyun, Lishui, Ruian, Wencheng, Taishun Pingyang and other places.

Born in valleys, streams, miscellaneous trees or shrubs at an altitude of 400~800 meters.

Distributed in the provinces, autonomous regions and Taiwan Province Province south of the Yangtze River Basin. Japan also has it. The wood grain is straight, the structure is fine and the material is medium, which can be used for furniture making and fine arts.

Three species of Ilex: Ilex kwangtungensis

Small evergreen trees, altitude 10 m. The bark is dark gray.

Branchlets angular, black after drying, rusty or yellowish brown pubescent.

Produced in Longquan, Qingyuan, Taishun, Wencheng, Pingyang and other places.

Born in sparse forests on slopes, valleys and valleys at an altitude of 250~900 meters.

Distributed in Jiangxi, Fujian, Hunan, Guangdong, Guangxi, Sichuan, Guizhou and Yunnan.

Ilex type 4: Ilex macrophylla

Evergreen trees, up to 20 meters high. The bark is gray and black, and all are hairless.

Branchlets are stout, yellowish brown, with longitudinal cracks and edges.

Born in evergreen broad-leaved forests on slopes and valleys at an altitude of 250~800 meters, it is also commonly cultivated beside houses.

Distributed in the Yangtze River valley and Fujian, Guangdong, Guangxi and other provinces. Japan also has it.

Leaves and fruits are used as medicine and can also be used as green trees in gardens.

Five species of Ilex: Ilex humilis

Deciduous shrubs or small trees, 2~6 meters high. Bark chestnut brown, no lenticels.

Branchlets slender, densely pubescent. Produced in Jinhua, Suichang, Songyang, Longquan, Qingyuan, Yunhe, Jingning, Lishui, Taishun, Pingyang and other places.

Born in thickets on hillsides at an altitude of 200~900 meters. Distributed in Anhui, Jiangxi, Fujian, Guangdong and Guangxi.

Six species of Ilex: Ilex ferruginea

Evergreen trees, 20 meters high. Bark is light gray, branchlets are angular, reddish brown and hairless.

Produced in Hangzhou, Lin 'an, Putuo, Xianju, Longquan and other places, born in warm, humid and fertile sparse forests or hillsides.

It is distributed in the Yangtze River valley from south to southwest provinces and Taiwan Province Province, as well as Japan and South Korea. Bark, roots and leaves are used in medicine.

Pruning method of Holly: Pruning time of Holly.

Holly's branches and leaves grow very fast, and many new buds are taken out every year, so Holly is a very pruning-resistant plant, so there is no need to worry that excessive pruning will affect the growth of plants.

Holly has many branches and leaves in summer and grows vigorously. It can be pruned in summer and pruned into an ideal shape in autumn according to the image design. At this time, in addition to modeling for Holly, we should also give Holly a break.

Pruned parts of holly

Generally, we prune the thin curved branches of Ilex, which have weak growth ability. Generally, we prune about one-fifth of the whole branches, leaving only flower buds, and appropriately prune the flower branches at the top of the crown of Ilex.

We can also trim it into a suitable shape according to the needs of garden decoration. Generally, we need to prune holly according to its growth and crown shape. When pruning, we can trim it a little lower than our ideal height, and Holly will soon grow into a suitable shape and size, which is more natural.

After the holly is pruned into an ideal shape, it is necessary to prune new branches regularly, because the growth ability of the holly is very strong, and if it is not pruned in time, the shape of the already made holly is easily destroyed.

When pruning, we should also pay attention to pruning some side branches to increase the transparency and permeability of Holly and prevent the reproduction of pests.

Maintenance of Holly after Pruning

After pruning the branches, there will be wounds on holly. We should pay attention to prevent wound infection and cause diseases of holly. Incision infection is easy to cause holly branch blight, so drugs should be used to treat the symptoms in time. You can apply a little quicklime to the wound to prevent infection.

Planting technology of greening trees;

Holly is suitable for planting in humid and semi-cloudy places, likes fertile soil and can grow well in general soil, and has no strict requirements on the environment. The seedlings planted in that year can grow naturally after being watered once, and watered once every 15 days as appropriate. Combined with intertillage weeding, topdressing 1 ~ 2 times a year is appropriate in spring and autumn, and dilute liquid fertilizer mainly containing nitrogen fertilizer is generally applied.

Cultivation techniques of Ilex (Ⅱ);

Holly sprouts and grows branches many times a year, which is extremely resistant to pruning. It should be pruned once in summer, and it can be pruned into a flat shape or a spherical shape or a conical shape in autumn according to different greening needs, and the branches should be properly thinned to maintain a certain crown-shaped branching state. Measures such as piling up soil to prevent cold can be taken in cold places in winter.

Planting techniques of Ilex trifoliata;

Leaf spot is the main disease of Ilex, which can be controlled by carbendazim and chlorothalonil.

Cultivation techniques of Ilex (Ⅳ);