Bougainvillea is also called bougainvillea, bougainvillea, bougainvillea and towelling coverlet. The flowering period is from July to 10, but it can bloom all year round when the temperature is suitable. Three bracts outside the petals of bougainvillea are leaflike. I like the hot and humid natural environment. Hi glare. The growth temperature is 25-30%. Bougainvillea flowers are unique and beautiful, and bloom flowers fall all over the treetops. It needs an obvious light source, and leaves will fall off in the shade, so it is only suitable to be placed on a sunny balcony or on a shelf outside life balcony. I will discuss how to raise bougainvillea from the following aspects: soil layer selection, irrigation methods, fertilization methods, light and temperature adjustment, plastic and cosmetic pruning methods, breeding methods, Citibank prevention and control and its common problems.

1. Soil layer selection

The modeling soil of bougainvillea is fertilized with soil, sheep manure, humus soil and sand. Add a proper amount of bone meal when planting. When planting bougainvillea, it should be planted upright, filled with molding soil and watered. In the whole process of planting, we should always pick the top to produce scattered and short plant shapes, and we can set up a support frame for bougainvillea to climb up. The secret recipe of soil layer used to shape bougainvillea at home: culture soil: humus soil: sand = 5: 3: 2; Peat soil: humus soil: sand: pottery =5:2:2: 1.

2. Irrigation methods

Bougainvillea needs a lot of water, especially in hot summer. Lack of water is easy to cause dead leaves and endanger growth and flowering. Therefore, water is watered twice a day in summer flowering period, and water is sprinkled in the morning. After 4 noon, the water pours 1 time. Irrigation can be reduced moderately after flower decay, and too wet soil layer will cause dead leaves and rotten roots; Water is manipulated in winter, and bonsai soil is not watered. However, water should be stopped 4 ~ 5 weeks before bougainvillea blooms, that is, when watering 1 time, watering should be done after the leaves or tender leaves are relaxed, which is beneficial to flower bud differentiation and production.

Bougainvillea likes wet soil and is afraid of water marks. In spring, with the acceleration of growth potential, it is necessary to water it every day, and often sprinkle water on its leaves and surroundings to improve the relative humidity of the air. The relative humidity of the air is not enough, and the leaves are very easy to die. Bougainvillea has many leaves and consumes a lot of water in summer. It is best to water the soil layer once every morning and evening to keep it moist and cold, so as to increase the frequency of sprinkling water on its leaves and surroundings. After the temperature is cool in autumn, keep the bonsai soil moist. In autumn, winter and early spring, when the temperature is low (about 65438 00℃), there is less watering, which makes the bonsai soil dry. However, if the indoor temperature is maintained above 15℃, it is necessary to water more to make the bonsai soil moist.

3. Fertilization method

Bougainvillea likes fertilizer. After the weather gets warmer in spring, apply base fertilizer 1 time every/kloc-0 ~ half a month, apply cake liquid fertilizer 1 time every week during the growth period, and topdressing phosphorus and potassium fertilizer several times during the flowering period. Reduce the amount of fertilization after autumn cooling, and stop fertilization in winter. In the high temperature season of growth and flowering, potassium dihydrogen phosphate solution with 1000 times can be sprayed on the leaves for 2-3 times, or topdressing 10 times of "Huaduoduo" general fertilizer every 1 0 day. Fertilization is terminated when the temperature is cool in autumn. When the temperature is low in autumn, winter and early spring, it is not fattening. However, if the temperature is above 15℃, the solution fertilizer can be applied 1 time per month. Bougainvillea is very sensitive to urea solution. If the fertilizer is not good, it is likely that the flowers will be flourishing and tender. Therefore, we should be especially careful when using urea solution. After flower failure in spring is the vegetative growth period of bougainvillea, and urea solution can be applied every 1 week/time. This can not only fill the cost of flowering and thank the main stem, but also promote the growth of new branches, laying a good foundation for the growth of reproductive system. Apply some thin liquid fertilizer in summer. When there is a standard, 0.2% ~ 0.3% potassium dihydrogen phosphate aqueous solution can be used as foliar fertilizer, 1 time, once every ten days. Urea solution 1 time should be applied in the early stage of branch growth, which is beneficial to branch growth.

4. Light and temperature adjustment

The suitable temperature for bougainvillea growth is 20 ~ 30℃, and when the temperature is lower than 5℃ in winter, it is easy to get cold and dry leaves. Bougainvillea likes sunshine, and the lack of light source in the growing season will lead to the decline of the main stem and endanger flowering. In winter, it should be placed in a bright place with no less than 8 hours of sunshine every day, otherwise many dead leaves will easily appear.