These are 2 good documents for aspiring citrus growers in south Georgia.
Citrus Fruits for Southern and Coastal Georgia
http://pubs.caes.uga.edu/caespubs/pubs/PDF/B804.pdf
Field Evaluation of Cold Hardy Citrus in Coastal Georgia
http://www.walterreeves.com/uploads/pdf/coldcitrus.pdf
I saw a lemon tree at a good friend's farm in the Thomasville, GA area of SW Georgia a couple of years ago. He had it planted on the south side of his tractor building --- lemons were nearly as large a grapefruits and quite tasty.
I am in the Vidalia, GA area and plan to plant some citrus trees next year. Doing my research now. We are about 80 miles due west of Savannah. There is an orange tree near us that has produced for many years. Think I might be able to root some cuttings from that tree? IF so, recommendations?
Thanks,
Joel