What if the peony flower core is black?

Solution: Improve its watering problem. When watering, water thoroughly at one time, but be careful not to accumulate water or get waterlogged. After watering, the soil is in the best state: you can drill a ball by grasping a little soil with your hands, but the ball is in the best state if there is no rhinestone. But the number and frequency of watering should be adjusted according to the solar terms. Water once a week in autumn and winter and twice a week in spring. Summer and flowering period depend on the soil conditions of plants.

Reason 2: lack of fertilizer.

Solution: Improve the problem of fertilization. Peony doesn't need much fertilizer, but it should be fertilized at least twice a year, once during the dormant period of the plant, usually in winter. Fertilize once in the plant growth period, that is, in spring; The amount of fertilization should be determined according to individual breeding conditions, such as the size of flower pots; Fertilizer can be bought directly in the market.

Reason three: pests and diseases.

Solution: always observe the surface of plants. If pests are found, clear them in time or use pesticides appropriately; If you find a disease, you must first find out what it is, and then prescribe the right medicine according to the disease. Bactericides or pesticides can be used, and all plants are sold in the market.