Also being in southern VA they are native to any area with a creek or river. The reason they are hard to find in a market is their shelf life is unbelievably short. We gather them in late Sept/early Oct and I only have a very few days to pulp and freeze or make bread. If you decide to get sapplings etc - only tranplant in spring AFTER last frost. Unlike other fruit
trees, they do not appreciate movement unless it's warm and in all likelihood will not leaf out in spring.