It's cool-season grass. These grasses usually go through a semi-dormant stage in the summer. As a result, growing them in the hot sun is difficult. On the other hand, the following suggestions will help you maintain a lush lawn even in the height of summer. • Taking care of your grass regularly is the first step. Apply insecticides and herbicides, and fertilize your lawn and garden as needed • Second, use iron-fortified fertilizer in the late spring. Even in the heat of July, the Fescues will remain lush and green • Brown spots are a warning sign. It's always possible to reseed the damaged area and maintain it lush for longer