Pot technology of two-color jasmine

Pot technology of two-color jasmine

Bicolor jasmine (Brunfelsia latifolia), native to America, is an evergreen shrub of the genus Jasminum of Solanaceae. It is 50cm high and has alternate leaves. Most of the flowers are solitary and few accumulate, the Corolla is high-dish-shaped, lobed, the florescence is as long as half a year (April to October), and the single flower blooms for about 5 days. It starts with purple, gradually changes to snow cyan, and finally turns to white. Because the flowers bloom successively, purple and white flowers can be seen on the same flower at the same time, and it is named bicolor jasmine because of its jasmine fragrance. It is a popular balcony flower. The main points of cultivation are as follows:

I. loose fertile acid soil species

Two-color jasmine is born in loose and fertile slightly acidic sandy loam with more humus. It is appropriate to use rotten leaf soil 50% plus 40% vegetable garden topsoil and 10% sand as culture soil, and should not be planted in alkaline soil and clayey soil. When planting, it is appropriate to put a layer of broken charcoal or hard plastic foam at the bottom of the basin to enhance air permeability, drainage and anti-rot roots, and it is easy to turn the basin and change the soil. 100g bone powder or nitrogen, phosphorus and potassium compound fertilizer should be added to the culture soil. Turn the basin and change the soil once a year in early spring.

Second, like dampness and fear waterlogging, phosphorus and potassium.

Two-color jasmine likes to be born in warm and moist places, but it is afraid of waterlogging, so it is appropriate to water frequently during the growing period, it is better to keep the basin soil slightly moist without waterlogging, and often spray water to the branches and leaves to improve air humidity to facilitate its growth. During the winter dormancy period, the basin soil is slightly moist and dry, and the roots are too wet and easy to rot. It likes fertilizer and applies nitrogen, phosphorus and potassium compound fertilizer once in 10-15 days during the growing period. Avoid applying nitrogen fertilizer alone, otherwise the branches and leaves will grow and the flowers will be few, and there will be no fertilization in the dormant period.

Third, like warmth and light rather than cold resistance

Two-color jasmine is native to tropical Brazil, likes warm and humid climate, is afraid of dry and hot wind, and is not resistant to cold. Therefore, in China, in addition to both land planting and pot planting in the south, the Yangtze River basin and its north should only be potted, and enter the house in winter. The growing period should be placed in the sunny courtyard and balcony, but it should be shaded slightly around noon in midsummer, when the leaves are easily yellowed by strong light. Growth stagnant below 15 ℃ in winter, if long-term 3-5 ℃ is vulnerable to chilling injury, it is advisable to move indoors before the minimum temperature drops to 5 ℃ and place it in a sunny place. If the room temperature is more than 5 ℃, it can safely survive the winter. If the room temperature reaches 20 ℃, it can blossom properly and keep the basin soil slightly moist. [Jishan Huayao]

Fourth, moderate pruning plant shape beauty

Family potted two-color jasmine, especially those placed on the balcony, should pay attention to pruning, often keeping 30cm to 40cm high round crown is more beautiful, early spring combined with turning pots to change soil, leaving about 20cm high heavy cutting once, the sturdy branches can be cut and propagated, the residual flowers will be cut off after flowering, and the inner chamber branches and over-high branches can be trimmed properly.

5. Cuttings can be propagated.

In spring, combined with turning the basin and changing soil, the 2-year-old strong branches were cut as cuttings, and the semi-mature branches in the same year were cut as cuttings in autumn, the survival rate of the latter was high, the cuttings were 10-15 cm long, the cuttings were dipped in VB12 and inserted into the plain culture soil, covered with plastic film to maintain about 80% humidity, and could take root in about 60 days. When the spring cuttings were 15 cm long, the new branches could be transplanted and planted with soil, and the autumn cuttings would stay in the original pot for the winter, and then bring the soil to the pot in the following spring. The branches close to the basin surface can also be selected in spring and autumn, the ring peeling is 1.5 cm and 2 cm, and the ring peeling part is pressed into the soil for 50 to 60 days to take root. Those under spring pressure are cut off from the mother plant in autumn, and those under autumn pressure are cut off and planted in the following spring.