Vetiver grass or Chrysopogon zizaniodes, is a tropical plant which can well adapt to different environmental condition. The grass can be growing in a wide range of areas, from highland to lowlands. It appears with dense clump and is fast-growing through tillering. The clump’s diameter is about 30 cm with a height of 50-150 cm. the narrow, erect and rather stiff is about 75 cm long and 8 mm wide.