Roundup Dual Action Weed and Grass Killer - 1 Gal

Kills existing weeds and grasses down to the root and prevents new weeds from growing for up to 4 months. Rainproof in as fast as 30 minutes with visible results in as fast as 6 hours. Apply to hardscapes and landscapes - cracks and crevices in driveways sidewalks and patios along fences in mulch beds or around the base of well-established desirable plants shrubs or trees and on gravel areas.