Name: Ligustrum lucidum Category: arbor
Alias: Shu Zhen Family Name: Oleaceae.
Latin name: Ligustrum lucidum with golden leaves
Ecological habit
Strong adaptability, like light, slightly tolerant of shade. Like warm and humid climate, slightly cold-resistant. Not drought-tolerant and barren, suitable for fertile, deep and moist slightly acidic to slightly alkaline soil. The root system is developed. Strong germination ability and pruning resistance. Resistance to sulfur dioxide and hydrogen fluoride.
morphological character
An evergreen tree with an oval crown. The bark is gray-green, smooth and not cracked. Branches spread out, smooth and hairless. The single leaf is opposite, ovate or ovate-lanceolate, the apex is acuminate, the base is wedge-shaped or nearly round, the whole leaf is dark green, shiny, hairless, and the back is light green and leathery. Flowering from June to July, with white flowers and terminal panicles. Berry drupe is nearly kidney-shaped, 10- 1 1. The fruit is ripe and dark blue when ripe.
Breeding and cultivation
Most of them are cuttage propagation, and March in spring is the best season with high survival rate. Like light, slightly resistant to shade, warm and humid, suitable for slightly alkaline soil, strong anti-air pollution ability.
Garden use
Ligustrum lucidum has lush foliage and thick green leaves, which can be used as street trees or clustered, or trimmed into high hedges. Because of its strong resistance to toxic gases, it is an excellent tree species for factory greening.
Distribution of origin
Originated in China and Japan. South of the Yangtze River Basin, Shaanxi, Gansu.
Acer rubrum
Aceracea of Hamamelidaceae. ) Oliver var. Ruby Yieh.
Scientific name: winter jasmine
English name: winter jasmine
Alias: Yingchun, Golden Belt, Yunan Yingchun, Ye Yingchun, Evergreen Cane Shrub, Yingchun Willow.
These families belong to Oleaceae and Jasmonaceae.
Family name: Meliaceae, semi-evergreen shrub
Features:
The old branches of deciduous shrubs are grayish brown, and the young branches are green and diamond-shaped. Leaves opposite, leaflets 3 or simple. Flowers axillary, yellow, corolla 5-lobed, early leaves open and fragrant. The flowering period is from February to April. Berries are deep purple. Also available for viewing is J.floridum: flowering in May. Leaves alternate. Jasminum yunnanense
It can be up to 5 meters high, with many branches, upright or curved branches, and green branchlets with four corners, often hanging in an arch shape. Odd pinnate compound leaves, 3-5 leaflets, elliptic leaflets, with fine hairs on the edge. The axils of flowers with annual branches have green bracts and lobes of six yellow corollas. It blooms in early spring from February to early March, hence the name "Winter jasmine".
Originated in northern China, mainly distributed in North China, Liaoning, Shaanxi, Shandong and other provinces. Winter jasmine is cold-tolerant, sunny, drought-tolerant but not waterlogged. Propagation is mainly based on branching, layering and cutting. It is often used to decorate flower beds and gardens. It is an important flower and plant in early spring.
Scientific name: Cinnamomum camphora (Linn. )presl
English name: camphor tree
Family name: Lauraceae, Lauraceae
Trees, up to 50 meters; When young, the bark is green and smooth, and gradually becomes yellowish brown or grayish brown longitudinal crack when old; Winter buds are oval. The leaves are thin leathery, ovoid or elliptic-ovoid, 5 5- 10/0cm long and 3.5-5.5cm wide, with short tip or near tail tip, rounded base, three veins from the base, the first or second pair of lateral veins near the base are long and protruding, the back is slightly covered with white powder, and there are glandular points in the axils of the veins. Panicles are born in the axils of new branches. The fruit is spherical and purple-black when it is ripe. The flowering period is from April to May, and the fruiting period is10-165438+10.
There are wild trees in the east, west Dongting Mountain and Yixing of Suzhou Taihu Lake, which are now widely cultivated in southern Jiangsu, born on sunny slopes, valleys and river banks, with fertile soil. Distributed in the south and southwest of the Yangtze River.
This species is an important timber and special economic tree species in the warm area south of the Yangtze River. Camphor and camphor oil can be extracted from roots, trees, branches and leaves. Camphor can be used in medicine, plastics, explosives, antisepsis and insecticide, and camphor oil can be used as raw materials for pesticides, mineral processing, soap making, fake paint and essence. Wood is of excellent quality, insect-resistant and moisture-proof, and can be used in construction, shipbuilding, furniture, cabinets, plates, sculpture and so on. Dense branches and beautiful trees can be used as green street trees and windbreaks. The main components of oil are camphor, terpenoid bicyclic hydrocarbon, camphene, limonene, eugenol and so on.
The optimum growth temperature of camellia is between 15~32℃, which requires a certain temperature difference and the environmental humidity is above 60%. Most varieties can withstand the low temperature of -8℃ (natural overwintering, Yuncha is not cold-resistant), and generally can naturally overwinter in the south of Huaihe River. Camellia cultivation soil should be acidic and require good air permeability. In order to promote the growth of root hairs, peat, sawdust, red soil, humus soil or a mixture of the above substrates can usually be used for culture. Camellia needs stronger light than azalea, so it can be shaded in spring, autumn and winter, and 50% can be shaded in summer.
Camellia usually needs to be watered with neutral or acidic surface water. When watering, it should be dry and wet. Water it thoroughly when it is dry, but be careful not to be too dry. Generally, water should be stopped at the end of spring shoots before germination to facilitate the transformation to reproductive growth, and water should not be stopped before flowering.
Usually, 10g cooked cake (pot diameter 25-30cm) can be used for fertilization; Compound fertilizer 2g/ pot; You can also use 0. 1% urea and 0. 1% potassium dihydrogen phosphate once every 10-20 days, and the above fertilizers are used alternately. If the new shoots are yellow due to iron deficiency, 0.2% ferrous sulfate can be applied once a week until they recover. Apply 0.2% ferrous sulfate every 15-30 days to prevent yellowing and root rot in the north.
Camellia pests mainly include red spider, aphid, scale insect, leaf roller moth, bridge builder and so on. The main control chemicals are cypermethrin15ml+isocarbophos 20ml or monocrotophos 25ml-30kg water spray.
The main diseases of camellia are ring rot, anthracnose, shoot blight, leaf spot and bituminous coal disease. The main control agents are: bactericide 800 times; Carbendazim 500 times; Chlorothalonil 800 times; Kemeiling should be controlled 800 times regularly, and attention should be paid to the prevention and control of gray mold and flower blight before flowering.