I'm not sure about the identification of this little frog. I went to this excellent site, and also looked through the Ashton's excellent fieldguide, "Handbook Of Reptiles And Amphibians Of Florida". I'm still stumped. Nothing really jumped out at me as a definite ID.
I've been cleaning up the "garden" lately, pulling old useless fence and bits of junk that have slowly built up in weedy corners. I seem to have an endless supply of sun rotted black flower pots tucked here and there. The frog was in a 5 gallon bucket of old scallop shells that I was saving for my aquaculture filter. When I flooded the bucket to rinse the leaves and debris out, up swam this little guy. My assumption is he was passing the winter there.