Vetivergrass is native to Asia, found predominantly in the South and Southeast regions. Beyond its native range, vetivergrass has been introduced across various major world regions, including the Americas, Africa, Europe, Oceania, and parts of Asia not within its traditional range. Its presence outside of its native regions is often due to cultivation and naturalization, and while vetivergrass may have an impact on ecosystems in certain areas, there is no widespread consensus on its status as an invasive species.