This product can be applied to actively growing turf in the spring, summer or fall. Application timing depends on the type of grass you have and where you live. Fertilizing should always coincide with the natural growth cycles of the type of grass you grow.
For cool-season grasses, such as Kentucky Bluegrass, Fescues, Bentgrass, and Ryegrasses, the most important time to fertilize is in fall and spring, just before their vigorous growth periods. In cold winter areas, don’t fertilize until the grass begins “greening-up” in spring. That means it’s beginning to grow. Avoid fertilizing cool-season grasses in the heat of summer. Summer feeding can weaken the turf and promote disease. Your local cooperative extension service can give you exact timing for your area.
For warm-season grasses, such as Bermudagrass, St. Augustinegrass, Centipedegrass, Zoysiagrass, Bahiagrass and Carpetgrass, the most important time to feed is from spring through summer. In some southernmost areas with longer growing seasons, fall is also acceptable. Wait to fertilize warm-season lawns in spring until after the second mowing. This will ensure they’re actively growing. In fall, make sure to fertilize no closer than six weeks before the first historical frost date in your area. Fertilizing too early or too late can weaken the turf and lessen hardiness. Your local cooperative extension service can give you exact timing for your area.
Before application, mow lawn first to ensure tall grass does not interfere with spreader functionality. Do not apply near water, storm drains or drainage ditches. Do not apply if heavy rain is expected. Check with your county or city government to determine if there are local regulations or restrictions for fertilizer use.