The easy way to the best lawn! Season Long Lawn Weed Killer + Preventer kills tough weeds like crabgrass and over 200 hard to kill weeds like Clovers and Dandelions. It prevents new weeds and crabgrass for up to 6 months by creating an extended 6-month control barrier that prevents new listed weeds. And it won't harm your lawn when used as directed. Apply it in spring or early summer, even if Crabgrass and weeds have already sprouted. It doesn't matter. Since it's both a preventer and killer, one application gets results. One Blue Bag is all you need.

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