So, is there any chance that my cannas will survive the winter if I don't dig them up and bring them inside before frost? I guess I didn't read the care instructions on those too well before buying them, and now I hear I have to bring them in. I just don't think I care enough about flower gardening to do that every year--I was just putting in the flowers as a side-whim to my veggie garden. Has anyone managed to keep cannas alive outside in a zone 6 winter? If not, I may just dig them up and give them to a friend who's willing to put in that kind of effort on ornamentals. Thanks!