Summer conditions are extremely stressful to turf grass. The normal heat of summer and usual dryness can cause the growth to slow down or even a state of dormancy. A state of summer dormancy in turf grass can be characterized by a browning out or dead appearance to your lawn. Summer dormancy in turf grass is normal and actually helps to minimize the damage prevailing summer conditions can cause. Once temps cool down and rains return in late Summer and Fall your turf will green up.