Good info, Lynn. I was wondering why some of my clay pots that have been sitting in a pile in the woods were still intact. I thought they'd be shards by now but they are all intact. Although we don't get boodles of snow here we sure get down into single digits sometimes, down in the teens more often, and combined with wet winters it takes a toll on a lot of my plants.
I'll have to do the "thud" and "ring" test on some of them!
ge1836/Jo Ann, I have a beautiful painted/glazed pot I've never taken the chance with..it goes in the greenhouse each year, no doubt about it.
Shoe