Can I overwinter a Papyrus? I have choices -- an unheated garage, an insulated barn that has no extra heat or a very small greenhouse that has a small fan/heater. I keep the fan running 24/7 and if it is going to freeze I put the heat on. Other than that it is just above freezing. Or there is the dark basement or the house, which I don't really want to do because I don't want to bring any more beasties in with another plant. Any suggestions for me?