I think it goes without saying that clothing really depends on the season. Because the weather in Florida fluctuates greatly during the fall, winter and spring, it's always wise to check the local weather before packing your bags.
In general, camping clothing should be:
- able to get dirty.
- non-cotton. (Non-cotton clothing is ideal because it can get wet and still retain heat. Cotton takes heat away from the body and doesn't stay warm.)
For hot weather, short is the key - short shorts, short-sleeve shirts, etc. Also, don't forget your rain jacket or poncho. Even if the weather forecast doesn't predict rain, it doesn't hurt to be prepared. Rain can show up anytime, especially in the summer months.
If you're camping near a body of water, a bathing suit will be necessary to cool off in the creeks, springs or ocean.
For cold weather, a jacket is a must. Fleeces work well. Other items include thermal underwear, hats, gloves and socks. It's important to keep your head, hands and feet warm. Wool socks are good for keeping warm, and synthetic socks are good for keeping dry as well but not as warm. Smart Wool is a good brand for socks.
Shoes depend on the activity (i.e. hiking requires hiking boots), but it's always a good idea to have a pair of closed-toe shoes.