Dunstan is a trademark name for a variety of hybrid chestnut (crossed Chinese with a little bit of native) and I believe it is Chestnut Hill that sells to Walmart. These ship once a year and I know that the Walmart in Monroeville usually gets some. They only go to certain, we spread out, locations. But a hybrid is a hybrid is a hybrid. I have both Chinese and hybrids on my property. Most are too young to produce yet but they are coming along. They want a lot of sunlight and need to be close to cross pollinate. I buy mine bare-root in January from the co-op in Frisco City or online and shipped to my door.