Kat, thank you for giving us a glimpse of your garden! I hope you will post more photos of the recovery process after this ridiculously cold Southern winter. We had a snow/sleet mix again this morning here in Southern Louisiana. So, I don't think there is a way to push the zones anymore... if I plant those plants for my zone, the hard freezes wipe them out. If I plant those plants hardy for cooler zones, the summer heat wipes them out. I think my entire gardening philosophy is going to have to change now with all these recent years rewriting our "typical" weather!
I would love too see and read about your strategies as you reclaim and revive your gardens this year.