As far as hardiness goes, my small but growing collection of Jovibarba all wintered better than some of the Sempervivum. I had put all the Jovibarba in an old wheelbarrow, and half way through the awful wet then freezing weather we got all winter I worried about them. I should have never been concerned, as I lost about half of the Sempervivum that were in shallow containers, but only one type of Jovibarba didn't make it. Phew....
