Answer: Once the foliage has faded and dried up you can dig them up, wash them off if needed, air dry them thoroughly for several days to a week, then store in an airy place in a single layer until fall. Paper bags or mesh bags work well as they allow for air circulation, but you can also lay them out on a shelf in a dark spot. Basements in older homes tend to be too damp, but a garage can be a good spot. The goal is to store them dry and dark. Check periodically for signs of mold. Replant in the fall.
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