Posted by Paul Spracklin on May 7, 2008, 12:39 am, in reply to "best succulent plants for walls"
I've planted a load of stuff in a similar position here on a rock face but I suspect very little would be left if it got to -12C. It's never been that cold here! I could suggest oodles of things that would be hardy to -6C, but I guess that isn't a lot of good.
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