Evergreen shrub.
Jasmine leaves are green, white and fragrant, which is unique among fragrant flowers.
In the application of gardens, open cultivation can be used to plant trees under trees, and some can be planted as flower fences on the roadside, with excellent results.
It is also used for potted viewing and is a traditional smoked camellia in China.
Jasmine is an evergreen shrub with slender branches like vines, green young branches and short hair.
The single leaf is opposite, ovoid or broadly ovoid, 3 ~ 9 cm long, with a sharp or blunt tip, a round base and all leaves.
Terminal cymes with flower stalks, each inflorescence has 1 ~ 1 1 flower, with as many as 30 flowers, usually only 3 flowers.
The corolla is white and fragrant.
It often does not bear fruit after flowering.
The flowering period may ~10 month, with the most flowering in July ~ August.
Jasmine likes light, but is a little tolerant of semi-shade.
Summer is hot and humid and sunny, so bloom eats the most and smells the most. If the light is insufficient, the leaves are large, the nodes are thin and the flowers are small.
Like warm and humid, not cold-resistant, slight frost will also cause leaves to fall off, and the best growth is at 25 ~ 32℃.
Jasmine likes fertilizer, slightly acidic sandy loam is the most suitable, and it is not resistant to drought and afraid of water accumulation.
Jasmine doesn't do special plastic surgery at ordinary times, so it naturally becomes the shape of a bush.
Pruning is divided into dormancy pruning and growth pruning.
The former is usually carried out before germination in Tomb-Sweeping Day, mainly by cutting off pests and diseases, dead branches, twigs and weak branches, cutting off annual branches and cutting off the top of biennial branches, and keeping 10 ~ 15 cm, so as to make the primary branches germinate orderly and healthily and adjust the crown; The latter is carried out from spring germination to overwintering, mainly by cutting off blind branches, trailing branches, weak branches and insect branches, so as to facilitate ventilation and light transmission.
Before each new shoot germinates, the redundant leaves are thinned, and the nutrients consumed by the old leaves even exceed the nutrients made by themselves. In order to save nutrients, ventilate and light, and reduce the breeding of pests and diseases, old leaves should be thinned.
Concentrate nutrients by pruning and thinning leaves, so as to facilitate the germination of new branches and make them germinate quickly and orderly.
Cut off the pedicel in time after each flowering, and trim the branches that are too dense to promote axillary bud germination, with more side branches, buds and flowers.
In addition to thinning branches and leaves, the work of removing new buds can not be ignored.
Around the long summer, new buds sprouted one after another, and the first bud appeared.
Because the temperature is still low at this time, the temperature difference between day and night is large, the buds are stunted, the flowers are small, the fragrance is poor, and the ornamental and economic value is not great.
In order not to waste nutrients and breed more high-quality buds, the first batch of buds should be picked in time before development, otherwise it will affect the annual jasmine production and ornamental effect.
Generally, after 67 years of planting, the plants of Jasmine begin to age, and the flowering period gradually decreases, so it is updated every 5-6 years.
If plants age earlier, they should be regenerated as soon as possible.
The specific method is to cut off all the aboveground parts about 3 cm from the ground with scissors, and then fertilize and cultivate the soil to promote the overground parts to grow in vain. Because of the strong germination of roots and necks, the trees recover quickly and the flowering amount increases.