I do that and keep each variety packed in a bag of peat moss, then stored in a box, packed tightly.I closed the box up and after frost sets in, I wrap the box up in a towel and place it in my attached garage until early spring when I take them out and repot them up. I've done that now for several years with success. Your zone is warmer, so I would think that would work. Or storing in a refrigerator crisper drawer, you'd just have less room for food.
