Dahlias do not tolerate frost
Even at slightly sub-zero temperatures, the shoots and flowers of the will freeze to death dahlia. That is why georgins must be kept indoors over the winter. Only the tubers are overwintered. Leaves and flowers cannot be brought through winter, because there is a lack of light and warmth in the cold season.
also read
- It is best to overwinter dahlias in the cellar
- Hibernating dahlias without a cellar - tips for alternatives
- Hibernating dahlias outside rarely works
To overwinter, the tubers must be taken out of the ground or the pot. They are expediently overwintered in the cellar.
Brave gardeners try that don't hardy dahlias to overwinter in the pot or even outside. Here, however, the failures are usually quite high and for high-quality ones Dahlia varieties not suitable.
It is best to overwinter dahlias in the cellar
A basement, cellar offers the perfect temperatures for the georgines to hibernate. Here it does not usually get warmer than four to eight degrees and the humidity is neither too low nor too high.
if no basement is available, other rooms are available for wintering georgines:
- Utility room
- Dry, frost-free garage
- Garden shed(€ 39.99 at Amazon *) with frost guard
Temperatures should not rise above ten degrees because the tubers then begin to sprout. Allow to dry out Dahlia bulbs neither, so spray them with a little water from time to time.
Tips & Tricks
Old wooden boxes without a coating are ideal for wintering dahlia bulbs. They regulate moisture so that the roots don't rot or dry out.