1、 How to maintain

1. Soil preparation: if you want to raise chrysanthemums well, the preparation of soil is a very important condition. You need to choose slightly acidic sandy soil and ensure ventilation, looseness, softness, nutrition and other factors. After preparation, put it under the hot sun for disinfection

2. Lighting conditions: chrysanthemums like to grow in the sun. In order to maintain them well, it is very important to control the light, which can affect the growth and flowering. In the stage of flower bud differentiation, it is necessary to give 12 hours of sunshine every day. It doesn't like strong light, so it needs to be maintained under astigmatism in summer with strong light to avoid direct strong light

3. Water and fertilizer management: the maintenance of chrysanthemum is inseparable from the application of water and fertilizer. It can't stand the ponding, but it needs water during the growth period, so it needs to be watered according to the plant growth and basin soil conditions. In summer, the watering frequency can be increased, the water volume must be well controlled, and there can't be too much water supply. Its growth and flowering can not be separated from the application of fertilizer, so as to ensure a good base fertilizer, and make rational topdressing according to the demand during the vigorous growth period

4. Temperature requirements: in the environment of 10-20 ℃, the growth is the best, and the curing temperature shall be maintained within this range as far as possible. The temperature shall not be lower than 10 ℃ for indoor maintenance in winter

5. Proper pruning: in the process of growth and maintenance, prune the plant properly according to the situation of the plant, remove the withered and yellow branches and leaves, and remove the residual flowers after flowering

2、 How many years

Chrysanthemum is a perennial plant. It doesn't die after one year. There is no problem in raising it in the family for three or five years. If it is well maintained, it can be raised for more than ten years