Alias: Magnolia grandiflora, Magnolia grandiflora family name: Magnoliaceae.

Latin name: Magnolia grandiflora

Ecological habit

Like a warm and humid climate, it needs deep, fertile and well-drained acidic soil. Like sunshine, but young trees are quite resistant to shade, not to strong light or western sun, otherwise it is easy to cause trunk burns. Strong resistance to smoke and toxic gases. Less pests and diseases, moderate growth rate. After 3 years, the growth will gradually accelerate, and it can grow more than 0.5 meters per year.

morphological character

Evergreen trees, up to 30 meters high, with oval cone crown. Branchlets and buds are rusty. The leaves are leathery, rectangular,10-20cm long, shiny on the surface, rusty on the back and slightly curled at the edge. The flowers are white with a diameter of 20-30 cm. Flowers are usually 6 petals, sometimes 9 petals. Flowers are as big as lotus, so they are also called lotus magnolia, which is full of fragrance. Flowering period may-July. The seed coat is red, and the fruit ripens in September-65438+1October.

Breeding and cultivation

1 can be propagated by sowing, layering and grafting. Sowing method: the fruit is harvested in mid-September and spread in a ventilated place, and the fruit gradually cracks. Take out the seeds, soak them in water, rub off the red fleshy film attached to the seed coat, wash the oil on the seed coat with soda water, then wash it with clear water, dry it in a ventilated place, store it in a wooden box, and sow it in the open field in the middle and late February of the following year. The seedbed should be a new land free of pests and diseases, and Huang Mu or sandy loam with deep soil layer should be used to build a high bed and drill. The base fertilizer can be fully decomposed human excrement and dry cake powder, which is turned into the soil before the whole bed. Garbage must not be used as base fertilizer to avoid diseases and bacteria. The row spacing is 30cm, the seeds are covered with fireclay fertilizer or loess mixed with bran ash, the thickness is 3 times of the diameter of the seeds, and the top is covered with straw for heat preservation and moisture retention. When the seedlings come out in late April, the tender grass mixed with crystal trichlorfon and poisonous ground silkworm should be sown continuously for 4-5 times, every 2-3 days. A shade shed can be set up in early May with a light transmittance of 40%, and the shade can be removed in the middle and late September. June 5438+current year1October can be transplanted.

Garden use

Shading trees, street trees and greening trees in polluted areas have large, white and fragrant flowers, and their crowns are wide and conical from May to August.

Distribution of origin

Native to eastern North America, it is widely cultivated in gardens from the Yangtze River valley to the Pearl River valley in China.