1、 Soil

It's best to choose loose sandy loam with good drainage for cultivating dahlias, and do not use sticky soil as much as possible. It can be prepared with rotten leaf soil, sandy soil and vegetable garden soil

2、 Sunshine

It should be raised in a place with sufficient light, and the light time should be more than 6 hours, which can make it grow better and the flowers will be fuller; If the sun is not enough, the growth of leaves and flowers will be affected

3、 Watering

During the growth period, increase the water amount. When the temperature is high, water it once a day. You can also spray water around to increase the air humidity. Don't be too dry or wet. Generally, the water volume should be increased during the growth period and reduced during the seedling period to avoid dwarfing

4、 Temperature

In the growth period of Dahlia, the temperature requirement is not strict. Generally, it can grow normally when the temperature is controlled at 5-35 ℃. The most suitable growth temperature is 10-25 ℃. If you want it to grow better, control it to the most suitable temperature as far as possible

5、 Fertilization

Fertilizer should be applied every 10-15 days from its seedling stage, and once a week after the emergence of flower buds. It is best not to apply fertilizer when the temperature is high. The amount of fertilizer should be determined according to its growth. The lighter leaves are mostly lack of fertilizer. If the leaves are yellow and scorched, it is excessive fertilization. The leaves are green and thick, which is the expression of appropriate fertilization