Look, it is an evergreen osmanthus in the south, an evergreen shrub or small tree of Oleaceae, with a height of 1.5~8 meters. Crown is round head, semicircle and ellipse. The height can reach 15 meters, and the crown can cover 600 square meters. The bark is rough, the opposite leaves are grayish brown or grayish white, ovoid, ovoid to lanceolate, and the whole or upper part is sparsely serrated. The leaves are leathery, opposite, oval or oblong, and the edges of young leaves are serrated. Flowers are clustered, with 3- 15 flowers in the axils of leaves, mostly in the spring shoots of that year, and there are also flowers on the branches of two or three years old. Each flower has four petals, and the corolla splits into milky white, yellow, orange red and other colors, with a very strong aroma. Flowers cluster in leaf axils to form cymes. The flowers are small, yellow and white, and very fragrant. The bark is smooth and gray. The single leaf is opposite, the leather is bright, the leaf shape and leaf margin vary with varieties, the leaf shape is elliptic to elliptic-lanceolate, and the leaf margin is whole or serrated. Flowers are axillary cymes, small and fragrant, and their colors vary with varieties. There are osmanthus fragrans with strong growth potential, thick branches, large leaf shape, rough leaves, dark green leaves and orange red leaves; There are silvery laurel trees with medium growth, smooth leaves, serrated leaves, milky white flowers and dense and sweet flowers; Strong growth potential, smooth leaf surface, sparse serrated or entire leaf margin, light yellow flowers and sparse fragrance, which can bloom with the above varieties from September to autumn 10, or once every 2-3 months. Dangui and Sijigui, the fruit is purple-black drupe, commonly known as cinnamon. Osmanthus fragrans seedlings have obvious taproots, developed and deep roots. Young roots are yellow-brown, and old roots are yellow-brown. The root system of grafted seedlings varies with rootstock; When cuttings are buried in the soil, adventitious roots grow everywhere, but there is no obvious main root. Osmanthus fragrans is highly branched and has low technical points, especially in its infancy, which often appears as a shrub for a long time. After close planting or pruning, it can become an obvious trunk. Bark is rough, grayish brown or grayish white, sometimes showing lenticels. The leaf surface is smooth, leathery, dark and bright green near the axis, and the far axis surface is more talked about; Oval, oblong, oval, obovate, lanceolate, oblanceolate, oblanceolate to ovate-lanceolate. [Edit this paragraph] Osmanthus fragrans, ecological habit, opposite leathery leaves, inflorescences clustered in leaf axils. The flowering period is from September to 10 and the fruiting period is from March to April of the following year. Osmanthus fragrans adapts to the vast subtropical climate. Sexual preference is warm and humid. The average temperature in the planting area is 14~28℃, the average temperature in July is 24~28℃, the average temperature in June is above 0℃, the minimum temperature is-13℃, and the optimum growth temperature is 15~28℃. Humidity is very important for the growth and development of osmanthus fragrans. The annual average humidity is 75% ~ 85%, and the annual precipitation is about 65438 000mm mm. Especially when young trees and adults bloom, they need more water. If there is drought, it will affect flowering, and strong sunshine and shade are not good for their growth. Generally, they need 6-8 hours of light every day.

Osmanthus fragrans likes warm environment, and should grow in acid sandy loam with deep soil layer, good drainage, fertility and rich humus. Not drought-tolerant and barren, it grows very slowly in shallow, hardened and barren soil, with few branches and leaves, thin and yellow leaves, no flowers or few flowers, and even periodic dead tops. In severe cases, the whole plant of osmanthus fragrans died; It likes sunshine, but it has a certain shade tolerance. Small trees need some shade, and adult trees need relatively sufficient light to ensure the normal growth of osmanthus fragrans. It is observed that one side of the crown of osmanthus fragrans clings to the wall, or when the crowns of two osmanthus fragrans plants overlap with each other, the crown close to the wall or the overlapping part will soon become sparse, which will affect the shape and beauty of the whole crown. It can be seen that osmanthus fragrans is suitable for planting in ventilated and light-transmitting places; Osmanthus fragrans likes clean and ventilated environment, is not resistant to the harm of smoke and dust, and often cannot blossom after being victimized; Afraid of waterlogging, if waterlogging damages, the root system will be black and rotten, the leaves will be scorched at the tip first, and then the whole leaves will wither and fall off, leading to the death of the whole plant; Not very cold-tolerant, but compared with other evergreen broad-leaved trees, it is still a cold-tolerant tree species, which provides more possibilities for potted osmanthus in the north.