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.
geographical distribution
Originated in India and South China, it is widely cultivated all over the world. Now it is widely planted in subtropical areas. Mainly distributed in Iranian, Egyptian, Turkish, Moroccan, Algerian, Tunisia, and Spanish, French, Italian and other Mediterranean countries, and also cultivated in Southeast Asian countries.
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.
cultivation techniques
Potted jasmine: water it every morning and evening in summer. If the air is dry, it needs to be supplemented with water spray; During the winter dormancy period, it is necessary to control the amount of watering. If the pot soil is too wet, it will cause rotten roots or fallen leaves. Apply pancake fertilizer once a week during the growing period. After changing pots in spring, we should always pick our hearts and shape them. Cut it again after flowering to help sprout new branches, so that plants can be neat and robust and bloom vigorously.
Quality and composition of soil
Potted jasmine requires that the cultivated soil is rich in organic matter and has good water permeability and air permeability. 4 parts of general garden soil, 4 parts of compost, 2 parts of river sand or chaff ash, and a proper amount of fully decomposed dry cake powder, chicken and duck manure, etc. Sieve off powder and coarse particles, and cover the surface with coarse particles.
Shangpen
The most suitable time is April-May before new buds germinate every year. Choose a suitable flowerpot according to the size of the seedlings. When putting the pot, hold the seedlings in one hand and shovel the culture soil in the other. When the soil covers all the roots, lift the plants up slightly and vibrate the flowerpot several times to make the soil in close contact with the roots. Then compact the basin soil by hand, so that the soil surface is 2 cm away from the basin edge, which is reserved for watering.
moisture
After planting, water the roots, then put them in a slightly shady place for 7- 10 days to avoid direct sunlight, and then gradually see the light.
The key to daily management is water. According to the characteristics of jasmine, such as being wet-loving, not drought-tolerant, afraid of stagnant water and breathable, we should master the time and amount of watering.
It can bloom in June-July. At this time, the root system has resumed normal growth, and thin alum fertilizer water should be poured every 7- 10 days.
In the future, it can be managed according to adult jasmine, and the pots will not be changed in that year.
Xifei
Fertilization method: from June to September, liquid fertilizer containing more phosphorus should be applied frequently in full bloom, preferably once every 2-3 days. The fertilizer can be decomposed bean cake and fish water fertilizer, or ammonium sulfate and calcium superphosphate. Generally, too much chemical fertilizer will burn jasmine plants. At night, 0. 1% potassium dihydrogen phosphate aqueous solution can also be sprayed on the leaves, which can also promote the leaves to bloom more.
Jasmine likes fertilizer, especially when the flowering period is long and more fertilizer is needed. It also likes acidic soil and can be watered with 1: 10 alum fertilizer once a week.
After the first flowering, the bean cake should be applied to the topsoil as a compulsory fertilizer. When flowering, bone powder and phosphate fertilizer should be applied as appropriate, and decomposed human excrement and urine can be poured when conditions permit, so that the jasmine flower has a strong aroma.
When the flowers are in high temperature, we should apply fertilizer 1 time every 4 days. We might as well use big fat water, generally watering in the morning, fertilizing at night, and dissolving the water the next day, which is beneficial to the root absorption of jasmine.
Pouring fertilizer should not be too thick, otherwise it will easily cause root rot.
Before watering, loosen the soil slightly with a spatula before watering. Don't fertilize when the soil is too dry or wet. Fertilization works best when it seems dry and not dry.