In Oklahoma, you should generally start watering your lawn regularly in late April or early May, once the Bermuda grass has fully emerged from winter dormancy and turned green. If you turn your sprinklers on too early in March while the ground is still cold and wet, you risk promoting fungal diseases like spring dead spot.
Spring Watering Best Practices
Spring weather in OKC is notoriously unpredictable. We often get heavy spring rains, which means you may not need to run your irrigation system at all during April.
How much water does my lawn need?
Once the heat sets in, Bermuda grass needs about 1 to 1.5 inches of water per week, either from rainfall or irrigation. It is much better to water deeply and infrequently (e.g., twice a week for longer durations) rather than watering a little bit every single day. Deep watering encourages the grass roots to grow deeper into the soil, making the lawn more drought-resistant for the brutal August heat.
