Diospyros virginiana In respect to the power of making heartwood, the persimmon rarely develops any heartwood until it is nearly one hundred years old. This heartwood is extremely close-grained and almost black, resembling ebony (of which it is a true variety). It is a common misconception persimmon fruit needs frost to ripen and soften, called bletting. Some, such as the early-ripening varieties "pieper" and "NC21"(also known as "supersweet"), easily lose astringency and become completely free of it when slightly soft at the touch—these are then very sweet, even in the British climate. On the other hand, some varieties (like the very large
Diospyros revaughanii species of ebony, this tree yields a dark black ebony wood. Consequently, it was severely exploited for wood and was decimated from much of its former range. It is now a threatened species and only survives in a few spots in the south-west of the island - around Bel Ombre, Mt Lion, and Perrier Nature Reserve - on exposed ridges and wet highland forest where it has escaped felling. The last patches of this tree's habitat are still threatened. Although it produces large amounts of fruit with fertile seed, these do not often germinate. The fruits were formerly eaten by