I have a lot of nice hardy cacti in my outdoor rock gardens. Echinocereus viridflorus is one that thrives here in Wyoming.
Good to know. I guess I won't be protecting it here in Texas. I wasn't before and I certainly won't now. Seeing snow in August while it is 102 is nice . I can dream on but don't hold my breath, right?
haha. nice! i also have some coldhardy cactis such as e, reichenbachi ceaspitous, and this one, and many colorful opuntia and barrels.
What barrels are you growing in Z6?
ferocactus hamatacanthus, very cold hardy. a texas barrel im getting from a frend.