The Gordon's Barrier Year-Long Vegetation Control Concentrate is a non-selective vegetation control concentrate in an advanced formulation that delivers results for up to a year! Its unique, 5-active-ingredient formulation is designed to deliver robust control for listed weeds, grass, brush and more. Use it anywhere you don't want vegetation to grow. This includes along fences, fencerows, driveways, patios, sidewalks, around buildings, curbs, parking areas, brick walks, gravel paths, walkways and paths.