Humidity may be the big problem. Some Hostas do OK but others don't seem to like the heat and humidity. Pholox might be more inclined to get moldy. Daylilies will love it! Dahlias will need a little more shade during the hotest part of the day. Mums and daffodils will do great. The big difference is that you need to get the bulbs in during the fall. Bring all of it. The Hostas are the only things that I would worry about.

Asparagus is not as productive in the south and you may have quite a time with the roses, too. Astilbe will probably not be real happy, but I've seen it north of Savannah.

You will need to learn what you CAN grow! A great deal of new possibilites for you down there, once you get the knack of it.