Sally, the leaves of my Callas were still all green, but I dug them out last Friday. The bulbs can be left out to dry until the leaves are yellow. Calla bulbs are very easy to store. Keep them in seed starting mix (or peat moss) in a box and leave the box in the garage.
I gave Callas to SSG several years ago. She said she had always left them in the garden for winter. Your garden is at least as warm as hers. You may not need to dig them out.
