Bonide Chickweed, Clover & Oxalis Killer ConcentrateBONIDE Chickweed, Clover & Oxalis is a powerful formula that kills even the toughest weed species (roots and all) but won't harm lawn grass, when used as directed. Kills chickweed and other tough weeds in lawns Kills many different species of weeds Kills clover, oxalis, speedwell, veronica, & ground ivy Kills weeds, not lawn grasses Kills broadleaf weeds, roots and all