I looked into purchasing Persimmons on my land in SE WI, on the fringe of zone 4-5. The place I might have bought from admitted that on average only 1 in 10 of there trees were female. Thus recommended purchasing at least 10 trees to insure polination for viable fruit. Is there a way to tell if Persimmon trees purchased are male or female?? You do need both in a planting area. This could be an issue if planted trees are too spread out. With Kiwi trees there is a way to tell male from female trees. I would like to learn more about this before attempting a persimmon planting.