Hibiscus Alba originated in the south of China. It likes sunny, well ventilated environment and warm and humid climate. It is suitable for fertile soil and afraid of cold. In northern China, potted plants are planted in winter. The basin is changed every year in early spring and April. 4 parts of sandy loam and 1 000 parts of manure can be used for pot changing.
The excess fibrous roots should be cut off and pruned at the same time. In the north, it was moved to the leeward of outdoor in May to prevent the drought wind from damaging the tender leaves, and then moved to the well ventilated and sunny place about half a month later. Fusang likes water and fertilizer, but is afraid of waterlogging.
In spring and autumn, it is usually watered once a day, and once in the morning and afternoon in summer. Water in the basin should be removed in time in rainy season. In dry and windy seasons in spring and summer and hot weather in midsummer, it is necessary to spray water on the leaves to increase air humidity. During the growth period, fertilizer and water should be applied once every 7-10 days and stopped in October.
In the first ten days of October, they should be moved indoors and placed in the sunny place. Water should be poured every 5-7 days. The amount of water should not be too much. Keep the basin soil slightly moist. The room temperature should not be lower than 5 ℃ or higher than 15 ℃.
Only by pruning and shaping in time can we keep the beautiful tree shape and promote the flowering and flourishing. The specific method is as follows: when the seedling of Hibiscus Alba grows to 20 cm high, it will pick off the heart and promote the germination of axillary buds in the lower part. 3-4 new shoots with uniform growth and uniform distribution were selected for base sprouting, and the rest axillary buds were removed. In the spring of the next year, a re cutting was carried out after leaving the room. Each branch was cut by 10 cm. After germination, 2 branches were selected for each branch, and the remaining twigs were cut off.
After that, a short cutting pruning is carried out every spring in combination with changing pots to keep the plants plump and vigorous. In order to control the overgrowth of trees, it is necessary to cut them short after flowering. The old plants can be re cut every 1-2 years, that is, 2-3 buds are reserved at the base of each lateral branch, and the upper part is cut off. If the water and fertilizer are sufficient, the new shoots will grow more vigorously with more flowers, larger flowers and more colorful colors.
