Continue to mow the fescue, even after it has turned brown and entered a dormant phase. You will only need to mow the fescue grass every seven to 10 days. You must continue mowing to keep the grass cut to a height of 2 to 2.5 inches. This is the optimal height for fescue to encourage roots to grow deeper and for the fescue to receive water throughout all blades of grass.
Water the entire lawn or area where fescue is planted. Start by placing sprinklers in various locations throughout the area so that once water is turned on, all grass receives an equal amount of watering. If you do not have access to multiple garden hoses and sprinklers, you will need to move the sprinkler around so all fescue receives a thorough soaking.
Soak all fescue with 1 to 2 inches of water, two times a week to bring the fescue out of the dormant stage. To gauge how much water you are using, place a container with a line marked to represent 1 and 2 inches. Make sure you can easily see the marking and ensure the water emitting from the sprinkler lands inside of the container. Water the area until your homemade gauge shows between 1 and 2 inches of water has fallen over the area. Move the sprinkler and water collection cup to another area of the grass and repeat the monitoring.