Vigoro Lawn Fertilizer greens grass in 72 hours, helps strengthen lawns against heat and drought, and contains time-release nitrogen for extended feeding. In addition, it features Assurance Particle Technology for an even greening and feeding with no burn guaranteed. Vigoro Lawn Fertilizer is for use on all grass types, including Bahiagrass, Bentgrass, Bermudagrass, Centipedegrass, Fescue, Kentucky Bluegrass, Ryegrass, St. Augustine, and Zoysiagrass. Apply anytime during the growing season. Use a spreader to apply product. For Vigoro broadcast/rotary spreaders, use a setting of 4. For Vigoro Spread Control, use a setting of 4 ½. For Scotts broadcast/rotary spreaders, use a setting of 4 ¼. For Scotts drop spreaders, use a setting of 10. Feed every 8 weeks for optimal results. 1 14 lb. bag of Vigoro Lawn Fertilizer covers 5,000 sq. ft.