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 celebica Diospyros celebica Diospyros celebica (commonly known as black ebony or Makassar ebony) is a species of flowering tree in the family Ebenaceae that is endemic to the island of Sulawesi in Indonesia. The common name Makassar ebony is for the main seaport on the island, Makassar. Makassar ebony wood is variegated, streaky brown and black, and nearly always wide-striped. It is considered a highly valuable wood for turnery, fine cabinet work, and joinery, and is much sought for posts () in traditional Japanese houses. Japan used to be the main importer of this wood. It is also used as a