Oriental persimmons (Diospyros kaki), grown in U.S. Department of Agriculture plant hardiness zones 7 through 13, produce fruit that is superior to the fruit of native persimmons (Diospyros virginiana), but the trees may suffer injury or death in temperatures below 10 degrees Fahrenheit. They produce fruit that is either astringent -- inedible until fully ripe and soft -- or non-stringent, and usually both male and female oriental persimmon trees are required at a site for the trees to produce fruit and seeds. Most oriental persimmons average heights of 20 feet with some as short as 10 feet and some as tall as 30 feet. Pests and diseases are rarely problematic in oriental persimmons.