How to cultivate双色茉莉 (Two-color Jasmine)
Do you know about these? The knowledge related to how to cultivate双色茉莉 and the methods of container cultivation of双色茉莉 is very useful. It is recommended to collect it!
双色茉莉 is a evergreen shrub of the Solanaceae family,鸳鸯茉莉属. When planted in the ground, it can reach a height of 100cm, while in a pot, it grows to 40-60cm. The leaves are alternate, oblong, with a rounded apex, entire margins, and the flowers mostly bloom singly in the axils of leaves, with a few in clusters. The flower tubes are slender, the corolla is flat and shaped like a high-footed dish, with shallow lobes. The flowers initially open in blue-purple, gradually turning to light lilac and finally to white. A single flower blooms for about 5 days. Since the flowers open successively, both purple and white flowers can be seen on the same plant, hence the name双色茉莉. Due to its color-changing flowers and fragrant aroma, and with a flowering period of half a year (April to October, with the most in April and May), it is one of the fragrant flowers loved by people.
The key points of cultivation are as follows:
One, potting soil.双色茉莉 can be planted both in the ground and in pots in the south of China, while in the Yangtze River Valley and northward, it must be brought indoors during winter and can only be potted. The pot should be chosen according to the size of the plant, generally a terracotta pot with a diameter of 10cm to 30cm and good permeability is suitable. For some plants that are 10 to 20 years old, a large pot of 40cm to 50cm can also be used. If using a more beautiful purple sand pot, ceramic pot, or plastic pot, a layer of碎 hard plastic foam can be placed at the bottom of the pot to enhance drainage and ventilation.双色茉莉 prefers to grow in loose, fertile, slightly acidic sandy loam soil. A mixture of decomposed leaf soil, vegetable garden soil, and sand in a ratio of 5:3:2 can be used as the potting soil. It is contraindicated to use clay soil, as it can easily cause root rot. The pot should be repotted and the soil changed once every 1-2 years in early spring, retaining 1/3 to 1/2 of the old soil.
Two, watering and fertilizing.双色茉莉 enjoys moisture but is afraid of waterlogging. April to September is its vigorous growing period, during which it is necessary to spray water on the leaves frequently to increase air humidity and promote growth, as well as to water the soil regularly. The potting soil should be kept alternately wet and dry, watered when dry, and stopped when saturated, without waterlogging. Prevent waterlogging during the rainy season. From October, gradually reduce the amount of watering, and the soil in the pot does not need to be dry during winter.双色茉莉 likes fertilizer. When potting or repotting, it is advisable to mix 50g to 100g of bone meal or compound fertilizer of nitrogen, phosphorus, and potassium into the potting soil. During the growing period, apply a compound fertilizer of nitrogen, phosphorus, and potassium once every 10 to 15 days, and spray 1 to 2 times of 0.2% potassium dihydrogen phosphate solution on sunny evenings each month to promote more and fragrant flowers. Avoid applying nitrogen fertilizer alone, as it may cause the branches and leaves to grow excessively with fewer flowers. Apply a phosphorus-potassium fertilizer before bringing it indoors, and do not fertilize from winter to the following February. Begin applying a small amount of fertilizer in March when the plant starts to sprout.
Three, temperature and light.双色茉莉 is native to the tropical Americas, preferring充足 sunlight, warm and humid climates, and the most suitable growth temperature is between 15°C and 32°C. During the growing period, it should be placed in a sunny courtyard, rooftop garden, or south-facing or west-facing balcony. The longer the exposure to sunlight, the healthier the growth, more flowers, and more fragrance. However, during the midday heat of summer, it should be shaded appropriately, as high temperatures and strong sunlight can cause the leaves to turn yellow. Move it indoors when the minimum temperature drops to 5°C in winter, but moving it too early indoors is not conducive to improving its cold resistance. Older plants that have been exposed to cold for many years can tolerate temperatures around 0°C, but when the temperature drops to 5°C to 0°C, the leaves may fall off, but the plant will not die, and it will start to bloom in April of the following year. Plants that are moved indoors at 5°C in winter can bloom in late March and early April. In areas where the winter temperature is below -5°C, the plant must be moved indoors for the winter.
Four, pruning. Home cultivation of双色茉莉, especially when placed on a balcony, should avoid frequent pruning to maintain a beautiful round canopy of 30cm to 40cm high. In early spring, cut back to about 20cm when repotting and changing soil. The cut healthy branches can be used for cutting propagation. Remove the withered flowers after blooming and pay attention to cutting off the overly long branches and inner branches to enhance ventilation and light. Prune once before moving it indoors in winter. For plants on the balcony, rotate the pot 180° every half month to ensure even exposure to light and prevent crown bias.
Five, propagation. The propagation of双色茉莉 is mostly done through cutting and high-pressure methods in spring and autumn. Select healthy branches about 10cm long, remove the lower leaves, dip in rooting powder or VB12, and plant them in sandy soil with sufficient scattered light, cover with plastic film, spray water to keep the humidity at 80% to 90%, but the soil should not be too wet. Under the conditions of 20°C to 25°C, it can take root in about 60 days. Gradually remove the film after new buds appear, then gradually move to a sunny place, and place it in a semi-shaded area in the midsummer. Cuttings made in spring can be potted in autumn, while those made in autumn should be left in the seedbed for winter and then transplanted into pots with soil in the following spring. It is particularly worth mentioning that no matter when cutting, it is necessary to cover with plastic film to maintain air humidity, otherwise it is difficult to root. High-pressure propagation is done in spring by selecting an appropriate part of a two-year-old healthy branch, stripping the bark about 1.5cm wide, applying rooting powder or VB12 to the wound, wrapping the wound with a mixture of moss and a small amount of decomposed leaf soil, and wrapping it tightly with plastic film. Then insert a long bamboo strip into the soil at the bottom and close to the plastic film, tie them with a string to prevent shaking. When the roots are visible in September, remove the film without dispersing the soil, plant it in a pot and place it in a shaded area, then transfer to normal management after half a month. For plants that have suckers growing from the root, division propagation can be done in early spring when repotting and changing soil.
The above content about how to cultivate双色茉莉 and the methods of container cultivation of双色茉莉 introduced by the Green Addict website is hoped to be helpful to you!