Until this summer, I've always hung plants mostly from porch roofs, not a place squirrels usually inspect. But after moving in April, I don't yet have that kind of thing setup (lots of work to do on this house.) So they're hanging in/around trees and I'm going to have to bring holiday cacti inside very early, this weekend. This is to save them from any more guerrilla gardening by the squirrels, (pieces all over the ground constantly,) and apparent grazing as well. Probably more reasonable than cutting down the trees yelling, "so THERE, you little (INSERT!!!!'s)"
