The nutmeg tree is any of several species of trees in genus Myristica. The most important commercial species is Myristica fragrans, anevergreen tree indigenous to the Banda Islands in the Moluccas (or Spice Islands) of Indonesia. The nutmeg tree is important for two spicesderived from the fruit: nutmeg and mace.

Nutmeg is a dioecious plant which is propagated sexually and asexually, the latter being the standard. Sexual propagation by seedling yields 50% male seedlings, which are unproductive. As there is no reliable method of determining plant sex before flowering in the sixth to eighth year, and sexual propagation bears inconsistent yields, grafting is the preferred method of propagation. Epicotyl grafting, approach grafting and patch budding have proved successful, epicotyl grafting being the most widely adopted standard. Air-layering, or marcotting, is an alternative, though not preferred, method, because of its low (35-40%) success rate.

“Kwao Krua”

is a native herbal plant found in deep forests of the northern region of Thailand. It has been well known to local people for many years due to its distinguished properties and efficacy as well as regarded as the national identity of traditional medicine. Researchers and academics have applied the wisdom and knowledge of old people to reveal its miracle while many state universities have included kwao krua studies in their master degree courses. According to its classification, there are 4 varieties of kwao krua that are beneficial and can be used for medicinal, food supplementary and cosmetic purpose name White Kwao Krua (Pueraria Mirifica), Red Kwao Krua (Butea superba), Black Kwao Krua and Dull Grey Kwao Krua.