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), barnyard grass (watergrass), jungle rice, brachialis, panicum (fall), bromegrass; panicum Texas; cheat, sandbur, crabgrasses, sprangle top, foxtail, stink grass, woolly cup grass Broadleaf weeds controlled: Carpetweed, lambs quarter, chickweed, pigweed, Florida Pusley (Richardia sabra), puncturevine (Western US only), goosefoot, purslane, knotweed, Russian thistle, kochia, stinging nettle