Cold Hardy Cacti
I never realized there were so many cacti that are winter hardy here in zone 6B. I'll have to cover them to keep them from getting too wet during the winter, but the cold won't be a problem for these. And to top it off, they produce edible fruit! The cactus in the last pic isn't one of the hardy ones, but it was in bloom at the same time as the Coryphantha in the second pic, so I made a reciprocal cross:
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