1. Cold-tolerant varieties can be planted in the south and the Yellow River basin, but indoor potted plants should be used for wintering in cold areas in the north. It can be planted after defoliation and before germination in spring. In order to improve the survival rate, we should avoid damaging the root system and transplant with soil balls. The ground should be planted in the leeward and sunny places. Potted soil with 3 parts humus soil, 3 parts garden soil, 2 parts river sand and 2 parts decomposed fertilizer was selected. Watering after planting 1 time. Keep it in a cool place, and move it to the sun for normal management after the growth resumes.

2. Light and temperature like warm and sufficient light. Except for apricot varieties, it is generally resistant to-10℃ except -25℃. High temperature resistance, can grow at 40℃. It grows best in the area with annual average temperature 16 ~ 23℃. Very sensitive to temperature, it blooms when the average temperature reaches -5 ~ 7℃ in early spring.

3. Pay attention to watering during the growth period of watering and fertilization. The soil in the basin should be always wet, and it can neither accumulate water nor be too wet or too dry. The principle of watering should be mastered. Generally speaking, water less when the temperature is low on cloudy days, or water more. You can water it twice a day in summer, once a day/kloc-0 in spring and autumn, and dry it thoroughly in winter. Fertilization is also reasonable. Before planting, base fertilizer should be applied and a small amount of potassium dihydrogen phosphate should be added. Before flowering, 1 potassium dihydrogen phosphate and 1 cake fertilizer should be applied to supplement nutrition. In June, 1 times compound fertilizer can be applied to promote flower bud differentiation. After defoliation in autumn, apply organic fertilizer 1 times, such as decomposed manure.

4. The pruning time of Bai Mei planted in the field can be carried out within 20 days after flowering. Give priority to with natural tree, cut off cross branches, erect branches, dead branches, too dense branches, etc. And cut short the side branches to promote the flowers to bloom. After the potted Bai Mei is put into the pot, it should be cut again to lay the foundation for making bonsai. Bai Mei with various postures is usually grafted with plum piles as the scene. Keep a certain temperature, and Bai Mei will be in full bloom in the Spring Festival. If you want to blossom on May 1, you need to keep the temperature at 0 ~ 5℃ and a humid environment, move out in early April and keep it in a sunny and well-ventilated place, so that you can see the flowers around May 1.

5. Flower-controlled potted Bai Mei is generally for family viewing. After defoliation in winter, keep it indoors at 0 ~ 5℃, gradually raise the temperature to 5 ~ 10℃ after New Year's Day, fully receive sunlight every day, and often spray water on branches, and the humidity of water should be close to room temperature. There are many kinds of diseases in Bai Mei, among which powdery mildew, leaf shrinkage and anthracnose are the most common.

1, powdery mildew. This disease often occurs in high humidity, high temperature and poor ventilation environment. In early spring and March, when Bai Mei germinates, the buds and new leaves are easily infected by germs, and a thin layer of white powder will appear on the affected area, and then needle-like black or yellow particles will appear on the white powder layer, and the leaves will turn yellow and die later.

2, leaf shrinkage disease. You can spray tropicazine or carbendazim, or 1% bordeaux mixture once every other week for 3-4 times in total to cure it.

3. Anthrax. At the initial stage of the disease, 70% Tobuzine 1000 times solution or 600 times solution of zineb can be sprayed for prevention and treatment. When other diseases are found, spraying the above two potions can also be effective.

The above contents refer to the data source.