Fertilize during the Spring and Fall – not Summer
Apply fertilizers during the spring and fall months, not directly in the middle of summer. The head and dry conditions can actually cause a reverse effect on your lawn after applying fertilizers. If your lawn browns out during the summer, relax! A lot of cool-season turf grasses brown out and go dormant during the summer months to survive. It is natural, and your lawn is more than likely perfectly healthy. Trying to help your lawn may actually end up hurting it. Making it prone to disease, and increasing weeds such as crabgrass are common when you try to treat your lawn during the hot months.