Hi, Vicki. The best way to store them is to uproot them and store the "bulbs" in peat moss in paper or mesh bags in a cool, dark basement. I've had success wintering elephant ears in the basement by leaving them right in their pots and letting them go pretty dry. (Very dry, in fact, so they don't rot.) The foliage dies off, of course, and the soil in the pots shrinks up quite a bit. In spring, I have to repot them because the soil has become dessicated and will hardly absorb water. But here's a warning: if they're potted in large pots and surrounded by a lot of moist soil, they'll likely rot if left to go dormant in the pots. It can be risky.