Planting Dahlia needs suitable environment, loose and well drained fertile sandy soil, and poor and lack of fertilizer is not suitable for planting. Half shade environment is suitable for growth. The sunlight should not be too strong or too weak. Keep half shade. It likes cool climate, not strict for temperature, as long as it can grow in the environment of 8-35 ℃, it is suitable to keep at 15-25 ℃.
Dahlia is more drought resistant, very afraid of standing water, too much water will lead to root rot, but it needs regular water supply to maintain growth. In addition to the fertile soil for planting, to ensure sufficient base fertilizer, it is also necessary to give fertilizer regularly during the growth period. From the middle and late July to the flowering time, it is also necessary to give fertilizer regularly, and apply thin liquid fertilizer every 7-10 days.
In order to bloom as soon as possible, leave 1-2 short branches after the flowers open, and then the new buds will continue to bloom. For some varieties without branching, it is necessary to remove the heart in time at the young stage, so as to promote the sending out of branches.
It is difficult for Dahlia to spend summer, and the ground part will gradually wither in summer, which needs to be cut off properly. And control the watering to block the strong light.
