Answer: Dahlias must be dug each fall in cold weather climates. After frost has nipped thefoliage and stems of your Dahlias, cut the foliage down to the ground. Then carefully dig the tubers and lay them in the sun for a few hours to dry. Then shake off excess soil. You can store them in sawdust, dry sand, peat moss or vermiculite in a cool (40F - 45F), dark place. In the spring the tubers can be divided before they are planted.
Each swollen tuber that has a bud forming at the stem end can be cut away from the others and planted. Cut with a sharp knife, taking part of the original stem with each division.
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