1. Temperature: In winter, if it does not pill, it needs to be placed in a warm enough place to cultivate, so as not to freeze it.In particular, the temperature may be maintained between 10-25.degree.C.If the temperature is very low, the seed balls need to be pilled to avoid freezing.
2. Illumination: In winter, the sunshine is not very strong. It is recommended to put the dahlia in a place with full sunshine.This allows its leaves to synthesize more nutrients, while helping to raise the temperature around it, which is very beneficial to its safe winter.
3. Watering: In winter, you don't need to water too much.Generally, water 1-2 times a month to keep its flower soil slightly dry.If the temperature of the maintenance environment is high, reaching more than 20 C, watering can be increased as appropriate.
4. Fertilization: In winter, it is not necessary to fertilize the dahlia.Because of the low temperature in winter, it grows slowly and needs less nutrients from the outside world.At this time, suspending fertilization can avoid bringing burden to its root system.