Zone 8a and so far bearded, Louisiana and Japanese do well here. Many people in this area have cristata, and sanguinia that grow very well too. Species iris that like water do well. Arilbreds get done in by the dampness. I have yet to grow any Siberians. Dutch iris love it in my yard. To the point they defeat my best efforts to rid them from parts of the yard.
I do have to keep up on maintenance though or the bearded and Louisianas get leaf spot issues.
