Ordering starts July 1st, deliveries start the first week of December to county offices (no charge for delivery). Fall is really the best time to plant anyway. They have a lot more than pine seedlings to offer, be sure to look through the lists. Pine seedlings are about 12-18 inches long, hardwood trees can be bigger than that. It's a good program.

Here is a link that might be useful: Georgia Forestry Commission's seedling program