Water bougainvillea. I like water, but I don't like it. Plant or water in a pot every year 1 time. At the peak of growth and development, water 1 time in the morning and 1 time in the afternoon (after 4 noon). Water 1 time every two days in spring and autumn, and adjust it indoors in winter to promote the full dormancy of plants.
Fertilized leaves and flowers change from time to time. Stop fertilization in winter and apply base fertilizer when planting or potted in spring. Potted plants can be applied with fermented cake fertilizer water or brake shoe water 3-4 times a month after leaving the house, and phosphorus and potassium fertilizer can be applied several times before flowering. Reduce the amount of fertilization in autumn and apply liquid fertilizer 1 time every week in summer.
Thermobougainvillea is a sunny green plant, which needs to be placed in a sunny place during the growing period. Before first frost in winter, move into a greenhouse, keep the temperature at 10 ~ 15℃, and place it in a sunny place, with the lowest temperature not lower than 3℃. In April, Grain Rain moved out of the greenhouse before and after, put it in a naturally ventilated and sunny place for maintenance, and entered the room before first frost.
Pruning bougainvillea has great potential for growth and development, so it must be pruned every year and re-pruned and updated 1 time every five years. The duration can be carried out in spring or at the end of each year, and the dense branches, dry branches, thin branches and cross branches are cut off to promote the development of new branches. Dead leaves and flowers in flowering period should be treated in time, and fallen flowers should be removed immediately after the flowers wither.
Propagation method of bougainvillea: healthy 1 annual branches were selected in May and June, and cut into 10 ~ 15 cm long cuttings, and ceramsite or plain sand was used as cutting medium. Bury the branches to a depth of 4 ~ 6 cm, spray water permeable agent, place them indoors in a semi-shady or sunny place, and put them into the pot after 40 days.
Insert water in late spring and early summer. 65,438+0-year-old branches were cut from healthy plants, and 65,438+05 ~ 20 cm branches were cut as seedlings. The glass bottle is cleaned and disinfected and filled with cold water, which is about 2/3 of the capacity of Aquarius. The seedlings were inserted into the water level of 65,438+0/3. When the tips reach 65,438+0 cm, put them into the pot.
Grafting is carried out in the spring when the air temperature is above 15℃. Phyllanthus urinaria, which is 3-4 years old, is used as adhesive wood, and improved varieties such as single petal are used for budding, with the length of 5- 10 cm. After grafting, it can be solidified and germinated in 40-50 days.
From May to June, select 1 ~ 2-year-old branches under the plant and press them into the tray. Branches must be annularly peeled, and the total width should be more than 2 times of the branch aperture. After compaction, the soil is fixed, and water is often sprinkled to keep it moist. After more than two months, the tray can be broken.