I purchased this a few years ago to protect my "hardy" fuchsias which I grow in large clay containers. My problem was that they drowned from all the winter rains and from freezing. I clump all of my containers together on a cement patio and then cover them after the first frost. I haven't lost any plants for two years. This year I may add my hardy amaryllis containers so that they won't drown.
Vancouver WA
