Try Gurneys. They are a mail order place that sells all kinds of fruit trees and flowers. We ordered 6 persimmon trees last year. 2 of them made it through to this year. We also bought one at a local nursery, it's growing much better than the mail order trees. But it was in better shape also. We got them out a little late last spring and missed all the good rain. I prefer to set trees in the late fall / winter here. That way they get all the spring weather. Easy to grow.
We cannot continue to do the same things and expect different results