I've been interested in alpines for years but alas my climate is anything but alpine (St Louis). I could find virtually no information on what plants might tolerate my climate, so it's been totally trial and error. Sadly, more error I'm afraid. But I thought I'd post my successes if any others with humid hot summers wanted to give them a try.
#1 is Houstonia caerulea
#2 is Aquilegia flabellata Nana
#3 is Pulsatilla campanella
#4 is Daphne cneorum Pygmaea
#5 is Degenia velebetica
These have all survived several seasons and look happy.
Jury is still out on a lot others - surviving, not thriving.
And of course a bunch just went immediately belly up.
If anyone has any suggestions for humidity & heat tolerating rock garden plants,
I'd be interested in recommendations.