Ylang ylang is a commonly grown tropical tree native to southeast asia; its common name derives from the philippines. The tree naturalizes easily and is self-seeding, and can become invasive. It is well known for its very sweet aromatic flowers which are a commercial source of an essential oil fragrance widely used as an ingredient in soaps and perfume, and is a popular scent in aromatherapy. A tree of moderate to large size it bears long pointed oblong-ovate leaves (6-8 inches) on drooping brittle branches, giving it an attractive but somewhat straggly appearance. The bark is smooth, gray to silvery in color. It reaches maturity at 4-5 years, bearing large clusters of up to a dozen greenish to yellowish flowers. Fruits resemble olives and are borne in clusters; they are bird food and seeds can be used for propagation. The wood has general construction and firewood uses. It grows well in periodically wet soils. Ylang ylang is readily pruned, a practice used when grown commercially for flower oil. The tree has no reported pest or disease problems. In landscaping, it has various applications as a small shade tree, specimen tree, in courtyards and large planters, parks and other open areas, and large conservatories. Ylang ylang flower fragrance can perfume an entire garden.