For 50 years, gardeners have trusted Preen® Weed Preventer products to help keep their garden and landscape beds weed-free for months. Preen Extended Control Weed Preventer is the longest lasting Preen yet, stopping weeds for up to six months per application. It’s labelled for use around 600 plants in perennial flower beds; around groundcovers, trees and shrubs; and in xeriscape settings and rock gardens. Preen Extended Control Weed Preventer tackles many of the toughest weeds a gardener faces, including: dandelions, crabgrass, field bindweed, white clover, chickweed, henbit, purslane, Carolina geranium, stinging nettle, horseweed or marestail, oxalis, spurge, lambsquarters and more.
Best of all, by applying Preen Extended Control Weed Preventer just 2 times per year you can get year-round protection from new weeds. No weeds means no time wasted weeding!