Natural Guard Non Selective Grass and Weed Killer Ready to Use is a fast-acting herbicidal soap that provides effective control for unwanted vegetation. Aside from grass and weeds, this herbicide is also effective against algae and moss, guaranteed to produce results as fast as 20 minutes. For use on raised beds, mulch around planters, patios, driveways, fences and foundations. Natural Guard Non Selective Grass and Weed Killer Ready to Use can also be used to prepare plant beds before planting flowers or grass. This product is also OMRI (Organic Minerals Research Institute) listed and is compliant with organic standards.