Dahlias are tuberous perennials, offering beautiful flowers each spring or summer. But they need to be dealt with carefully ...

Preparing dahlias for winter is key because their tubers can split or rot in freezing or soggy soil. Martha now protects her dahlias outdoors by covering the beds with compost, a tarp, and insulating ...

Dig up dahlias about two weeks after the first frost so the tubers can form eyes for next year’s growth. Clean, divide, dry, and store tubers in moist peat moss or vermiculite in a cool, dark spot.