Achieving a lush, thick and green lawn can be a labor-intensive task, especially if you have a large yard. Fescue lawns require frequent summer watering, regular applications of fertilizer and a regular mowing regime to look their best. Neglected fescue lawns will be weed-ridden and may burn out in the heat of summer.
Mow fescue lawns every 5 to 7 days throughout the summer months of June, July and August. Mow at 3 inches or higher.
Withhold fertilizer during the summer. Fertilizing may stress a fescue lawn in the summer months.
Provide 1 inch of water per week throughout the summer months. The water should be applied over one or two waterings. Use a pan to measure the water coming from the sprinklers to determine how long it takes to apply appropriate amount.
Check for brown patch disease. It will appear as brown areas of grass often in a horseshoe pattern. Aerating your lawn and ensuring you do not over-water will prevent the disease. It's hard to treat with fungicides, but best results can be attained by applying products containing mancozeb, propiconazole, quintozene, myclobutanil, triadimefon or thiram. Apply the fungicide using recommended application rates.
Withhold applications of herbicides during the summer months. Applying herbicides in the summer can cause severe stress to your fescue lawn.