No, you won't ruin them; they are in their summer dormancy right now. You can store them dry in a closet until it is time to put them back in the ground. No need to put them in the frig. That will make them think it is winter. You can put them back into the ground whenever you get the bed finished. The big growers send them out to be planted in the fall because that is when they begin root growth but you don't need to wait that long to replant them.