What should I do if the core of the peony flower turns black?

Reason 1: Lack of water

Solution: Improve watering issues. When watering, water thoroughly at one time, but be careful not to allow water accumulation or waterlogging. The best state of the soil after watering is: if you grab a little soil with your hand and can drill it into a ball, but no water is drilled out and the soil ball does not fall apart, this is the best state. However, the amount and frequency of watering should be adjusted according to the solar terms. In autumn and winter, watering should be done about once a week, in spring, watering should be done twice a week, and in summer and its flowering period, watering should be done according to the soil conditions of the plants.

Reason 2: Lack of fertilizer

Solution: Improve the fertilization problem. Peonies do not have high requirements for fertilizer, but they cannot be without fertilizer. They need to be fertilized at least twice a year, once when the plant is dormant, which usually happens in winter, and once during the plant's growing season, which is spring. The amount of fertilizer applied depends on personal breeding conditions, such as the size of the flowerpot. Fertilizers can be purchased directly on the market.

Reason 3: Diseases and pests

Solution: Always observe the surface of the plants. If you find any pests, remove them in time or use pesticides appropriately. If you find any diseases, you must first understand what the disease is, and then prescribe the right medicine according to the disease. You can use fungicides or pesticides, which are sold in plant markets.