Ortho GroundClear Weed & Grass Killer Super Concentrate is a powerful dual-action formula that kills 175 different types of weeds and grasses to the root, including clover, dandelion, oxalis, chickweed, crabgrass, and nutsedge. The quick-kill formula starts working immediately as one ingredient kills on contact while the other penetrates deep into the plant to kill all the way down to the roots. Sprayed weeds begin to wilt within hours after application, with complete kill occurring within 1-2 weeks.

This concentrated weed killer is rainfast 15 minutes after application and can be used around perennial landscape plants, trees, shrubs, and fences, as well as on patios, paths, sidewalks, sidewalk cracks, walkways, and driveways. To apply, mix the concentrate with water in a tank sprayer. For weed control, add 5 fl. oz. to 1 gallon of water to cover up to 350 sq. ft. For established and difficult to control weeds, add 10 fl. oz. to 1 gallon of water. The 64 fl. oz. container treats up to 4,480 sq. ft. when mixed at the standard rate.

Active ingredients include Diquat dibromide (2.53%), Fluazifop-P-butyl (0.84%), and Dicamba, Dimethylamine salt (0.67%). For best results, apply when weeds are actively growing and the air temperature is above 60°F. People and pets may re-enter the treated area after it has dried.