Dahlia is a bulbous flower of Compositae. Its flowering period is very long. As long as the environmental conditions allow sufficient nutrients in the body, it can open many times. Generally speaking, we can do it in most of our domestic environment in May, and it will open normally outdoors until the early frost comes in November.
In this process, if the temperature is too high in summer, dahlia will have a short period of stagnation. Generally speaking, the ideal flowering temperature is about 20 degrees. Every time the flowers fail, they should be pruned. The buds in the lower part of the flower can sprout new branches again. As long as the nutrients are sufficient, they can sprout new flower buds again. So in this period, it is in a state of non-stop flowering, and the flowering period is relatively long.