Vetiver grass, Vetiveria zizanioides, Lynn Nash, is a plant native to India with fast growing roots beneficial in soil and water conservation where erosion is problematic. Chemical compounds from the roots of vetiver grass also possess insecticidal activity against cockroaches, flies, moths, and termites. A major interest of homeowners is to use vetiver grass plants around the perimeter of a structure as a repellant for termites. The objective of this study was to determine if actively growing vetiver grass roots leach repellent chemicals into the substrate thus providing a potentially extended zone of repellency. Vetiver plants were planted in sand-filled polyvinyl chloride (PVC) pipes measuring 10 inches in diameter and 8 feet in height. Sand samples were taken at 4 different heights from pre-drilled holes in the PVC pipes every 2 months for 8 months. Samples were analyzed using thin layer chromatography and indicted that vetiver oil was present in all samples (except controls).