My Princess Persimmons are also from Julian. The female has put out over 30 flower buds, while the male has none. You make a good point about not letting the tree fruit while still in early stages of development, but I like they as they are now, in fact, and I'm really looking forward to seeing them flower and fruit! I read an article about how only the American native variety needs the male present to fruit, but we'll just have to see what happens this year.
Funny, I don't remember seeing persimmons last time I visited. I would love to stop by again to see the progress of your trees, as you have so many!=)
Owen, Thank you for your comment. I cut a few elongated branches to encourage the buds closer to the main trunk. In Japan do they need the male Princess Persimmon present for the female to fruit? Since they are a specific dwarf variety, I would assume they have unique qualities other than small leaves and small fruit. I've read several articles that say different things. No one seems to really know here in the States.