Lawn Care During Heat Waves: Expert Tips for Watering
During extreme heat waves, warm-season grass varieties like Bermudagrass, Zoysiagrass, Centipedegrass, and St. Augustine grass can thrive if adequately watered, according to Hillary Thompson, horticulturist and Communications Director of Super-Sod in Atlanta, Georgia. However, cool-season grasses such as Tall Fescue may struggle, especially when nighttime temperatures remain high (mid to upper 70s °F / 24-26 °C). Thompson advises against daily watering, recommending deep watering once or twice a week, preferably at sunrise, to minimize evaporation and reduce disease risks. This approach helps lawns stay lush and green while conserving water. Warm-season grasses can also survive short droughts by going dormant and recovering when rain returns. [Source time: not specified] 
