Azadirachta indica is a tree in the mahogany family Meliaceae. It is one of two species in the genus Azadirachta, and is native to Pakistan, India and Bangladesh growing in tropical and semi-tropical regions. Its fruits and seeds are the source of neem oil.
Neem is a fast-growing tree that can reach a height of 15-20 metres, rarely to 35-40 metres. It is evergreen, but in severe drought it may shed most or nearly all of its leaves. The branches are wide spread. The fairly dense crown is roundish or ovular and may reach the diameter of 15-20 mt in old, free-standing specimens.