How to Water Bermuda Grass
Bermuda grass watering guide: 1 to 1.5 inches per week during active growth, applied in 2 to 3 deep sessions. Drought stress signs and sprinkler calibration method.
Place 4 to 6 empty tuna cans around your lawn and run the sprinklers for 30 minutes. Measure the water in each can. Average the measurements. This tells you how many minutes you need to run your system to apply 0.5 inches. Most pop-up spray heads deliver 0.5 inches in 15 to 20 minutes. Rotary heads take 45 to 60 minutes.
Apply 0.5 to 0.75 inches per session, 2 to 3 times per week, for a total of 1 to 1.5 inches. Deep infrequent watering encourages bermuda roots to grow deeper into the soil profile. Daily light watering keeps roots shallow and increases disease risk.
Water between 4 AM and 9 AM. Morning watering allows blades to dry quickly as temperatures rise, reducing fungal disease risk. Evening watering leaves blades wet overnight, which promotes dollar spot, brown patch, and other turf diseases. Afternoon watering wastes water to evaporation.
Bermuda shows drought stress before it's damaged: the color shifts from green to blue-gray, and footprints remain visible for several minutes after walking on it (normally bermuda springs back immediately). When you see these signs, water within 24 hours. Bermuda recovers from moderate drought stress within a week of watering.
In September, reduce watering frequency to once per week. In October, stop regular irrigation. Bermuda going dormant doesn't need watering. One deep soak per month through winter prevents complete root desiccation in areas with dry winters, but the lawn doesn't need to stay green.
