We offer a Spot Sprayed Shrub Bed Weeds for your landscape. This treatment will control/kill weeds. In is important to keep landscape irrigation off for 24 hours following this treatment. Glyphosate weed killer does take 1 to 2 weeks to kill weeds but is very effective. No weeds were sprayed in vegetable garden areas, groundcover plantings and directly on/in shrubs were plant damage can occur. For bad weed problems and complete control additional weed treatments should be scheduled every 6 weeks.