Vegetable & Ornamental Weeder is a preemergence herbicide for the control of annual grasses and broadleaf weeds in ornamental trees, ornamental woody shrubs, ornamental groundcovers, roses, established flowers and vegetable gardens. Vegetable & Ornamental Weeder controls weeds by killing their seeds as they germinate. It does not control established weeds. It provides long-lasting control of annual grasses and broadleaf weeds: Grasses controlled: Annual bluegrass, johnsongrass (from seed), barnyardgrass (watergrass), junglerice, brachiaria, panicum (fall), bromegrass; panicum texas; cheat, sandbur, crabgrasses, sprangletop, foxtail, stinkgrass, woolly cupgrass Brodleaf weeds controlled: Carpetweed, lambsquarter, chickweed, pigweed, florida pusley, puncturevine (Western US only), goosefoot, purslane, knotweed, russian thistle, kochia, stinging nettle