Growing vetiver grass for soil and water conservation had not been a general practice in Thailand until His Majesty the King brought recognition to such value and capacity in 1991. He granted an initiative to the Chaipattana Foundation to carry out a study that would establish the capacity of growing vetiver grass to preserve soil and water. The growing process of the vetiver grass is simple and economical, and is therefore suitable for Thai farmers. It also does not require great care after planting.