The root of the big flower ball must pay attention to the temperature in the cold winter. After all, the temperature is particularly low in winter. If you want to preserve the root of the big flower ball, you must do more precautions in terms of temperature and try to control the temperature above 5 ℃. However, if the temperature is high, it is better not to exceed 15 ℃, otherwise new leaves will not grow from the roots of dahlia bulbs.
Generally, when preserving the dahlia ball root, it is necessary to plant the dahlia ball in the position of the pot. In addition, the potted plant should be placed in a ventilated place, after all, the vigorous flower ball should also be properly breathed and metabolized in the cold winter.
Although the weather is extremely cold, the soil should not be completely dry when preserving the bulbs of dahlia flowers, otherwise it is easy to die. So water the soil properly every once in a while to keep it moist.
Dahlia bulbs must have a little light when they are stored in the cold winter. In this way, the dryness and humidity of the soil can be maintained, which is also conducive to the growth of plants, and of course it can also hinder the reproduction of bacterial pests.