What does the best for me is is what Zill was selling as South Fl Persimmon or Tropical Persimmon . Hudson is the real name . All three are the same. Getting seed from American Persimmon from anywhere north of Fl will not work as a good root stock, You need to use seed from here. We are collecting seed from off the Kissimmee river and are going to try to graft in a year or two. As far as using black sapote it does not work you will get incompatibility in a year or two And we do not have any persimmons for sell now.
Thank you for this new information about rootstocks. I didn't realise that the wrong rootstock could affect the chill hours and we don't ever get any chill hours at all. Perhaps I really should try growing rootstock seeds from Florida to see if they would even stay alive in my climate.
Anyway, good luck with the grafting. It seems that many of us like persimmons and if I'm still looking by 2025/26, I'll definitely check with you.