Lilly Miller® 100505475 Image Casoron Granules, 8 LbImage Casoron prevents weeds and grasses for up to one year. Ideal for use around roses and listed shrubs and trees. Prevents 52 weeds and grasses around established trees, and shrubs. Treats over 1,700 SQFT. Size: 8 lbs Ready to use One application for all seasons Prevents 52 weeds and grasses around established trees, and shrubs Ideal for use: Around roses and listed shrubs and trees Prevents regrowth for up to one year Treats over 1,700 SQFT.