tapla said: Persimmon trees are self pollinating...
https://balkanecologyproject.b...
Sexual Reproduction - The species is mainly dioecious, which means that each individual tree is either male or female. The pollen from the flowers on the male tree should be carried via insects (generally bees) to the flowers on the female tree for the fruit to set, however, many popular cultivars are parthenocarpic which means that they only produce female flowers and will set seedless fruit without pollination.
I had a guy with a big 36-inch back hoe dig the clay out and replaced it with wood chips at the bottom, good soil, and more wood chips on the top.