The Alabama Cooperative Extension Service list nurseries that sell blueberry plants in Regional Plant Nurseries .This site lists regional plant nurseries in Alabama, Georgia, and the region offering Native Plants. Many of these nurseries are wholesale only, but you can give the plant name and name of the wholesale nursery to your local retail garden center. They may be able to order plants if they do not have them in stock.
The LSU AgCenter uses Market Maker to help you find nurseries that sell blueberry plants in Louisiana. Go to Louisiana Market Maker for more information.
The Mississippi State University Cooperative Extension Service lists nurseries that sell blueberries in A Quick Reference Guide to Wholesale Nurseries and Commercial Sod Producers. This reference guide helps you find growers who have plants, sod, as well as services you may be looking for.