Jasminum sambac (L.) Aiton is an erect or climbing shrub of Oleaceae and Jasminum, with a height of 3 meters. Branchlets cylindrical or slightly compressed, sometimes hollow, sparsely pilose. The leaves are opposite, simple, papery, round, ovoid or obovate, with rounded or obtuse ends. The base is sometimes slightly heart-shaped, the top is slightly concave or concave, the bottom is convex, and the venules on both sides are often obvious and slightly convex, except for the tufts of hairs between the axils of the lower veins, the rest are hairless; Lobes oblong to suborbicular, apex rounded or obtuse. The fruit is spherical and purple-black. The flowering period is from May to August, and the fruiting period is from July to September. Jasmine is very fragrant, which is a famous raw material of scented tea and an important raw material of essence. Flowers and leaves are used to treat redness and swelling of eyes, and have the functions of relieving cough and resolving phlegm.
Morphological characteristics: erect or climbing shrubs, up to 3 meters high. Branchlets cylindrical or slightly compressed, sometimes hollow, sparsely pilose. The leaves are opposite, simple, papery, round, ovoid, ovoid or obovate, 4-12.5cm long, 2-7.5cm wide, rounded or obtuse at the end, slightly heart-shaped at the base, 4-6 pairs of lateral veins, slightly concave or concave at the top, convex at the bottom, and often veinlets at both sides, slightly convex except between the axils of inferior veins. Petiole 2-6 mm long, pubescent, articulate.
Growing environment: Jasmine likes warm and humid, and grows best in a well-ventilated semi-cloudy environment. The most suitable soil is slightly acidic sandy soil containing a lot of humus. Most varieties are afraid of cold, drought, frost, wet waterlogging and alkaline earth. When the temperature is below 3℃ in winter, branches and leaves are vulnerable to freezing damage, and will die after a long time. Deciduous lianas are very cold-tolerant and drought-tolerant.
breeding method
Cutting: April-June, 65438+ 10. Select the mature branches of 1, cut them into more than two cuttings, remove the lower leaves, insert them on the semi-sand bed, and cover them with plastic film to keep the air humidity high. It takes about 40-60 days to take root.
Layering: choose long branches, lightly cut them at the lower part of the nodes, bury them in a small basin filled with sand and mud, keep them moist often, and take root in 20-30 days. After two months, they can be cut off from the mother plant and planted separately.
Main value: Indoor cultivation: Jasmine leaves of evergreen shrubs are green, white and fragrant, and are used as fragrant flowers in common gardens and potted plants. Decorating rooms with potted plants is elegant and pleasant, and can also be processed into garlands and other decorations. Most of the yellow and fragrant white flowers of deciduous lianas are one of the best ways to decorate winter gardens in many foreign gardens. "Flowers bloom all over the garden, but the fragrance can't beat it", which is the jasmine flower that "one flower can smoke a room of fragrance". Although jasmine is not dazzling, it has both the sweetness of roses and the fragrance of plum blossoms, both the elegance of orchids and the elegance of magnolia.