When you desire to grow your own persimmon fruit on persimmon trees, you will need both a male and female persimmon tree because these fruit trees are "dioecious." Dioecious refers to fruit trees that do not self-pollinate. This means that a male persimmon tree must pollinate a female tree within close growing proximity. When you must identify a male persimmon tree, you will find it is not difficult when you examine the blossoms of the trees during the springtime.
Find flowers from blossoming persimmon trees so you can examine the blooms. Clip the blossoms from the trees to examine them closely. You will see light yellow blooms with four distinct parts in the shape of a bell.
Measure the blossoms with the ruler to compare. Female blossoms are larger than male blossoms and generally reach approximately ¾-inch in diameter. Male blossoms generally only grow to a diameter of 3/8-inch.
Count the stamens on the smaller male blossoms and you will see that they have 16 stamens. The larger female blossoms have only eight stamens and they are smaller than the male stamens.
Notice the green calyx at the bottom of the blossoms. The female calyx is noticeably larger than the male calyx and is much thicker.