I'm adding colocasia Jack's Giant, c. Bikini Tini, c. Gigantea Thailand Giant, and alocasia Dark Star to my tropical garden. Today I received info that these plants will rot if left in the ground year-round, and that they do not form a large enough corm to regrow if stored indoors. I was advised to dig an offshoot, pot it, and store indoors.
Jack's Giant are 5 giant corms (purchased from generous member Bill Kurek, Caladiums4Less), and the others are in 4" pots. I have grown colocasia esculenta for years, overwintered in large outdoor pots protected from the rain and freezing temps, with no problems.
If anyone has experience with growing any of the above in zone 8, I would like your advice/experience. I purchased these particular plants because they are rated as hardy in my zone 8B. If I made an expensive mistake in buying them, I will be most unhappy. I don't have a greenhouse or any indoor space for overwintering. These plants were chosen for growing in-ground and in large tubs (along with THIRTY 13/15-inch colocasia esculenta corms!).