David Ketchum's Advice: Optimal Mowing Height for Drought Resilience

In light of water scarcity during drought or water shortage periods, David Ketchum recommends adopting the "Mow High" approach. It's a known fact that grass growth slows down when water availability decreases. Consequently, you will find yourself mowing less frequently. However, when you do mow, always adhere to the highest recommended height for your specific grass species. Remember, it is crucial never to remove more than one-third of the leaf blade in a single mowing session, as this would further stress the already drought-affected grass. By mowing at a higher height, you encourage deeper rooting, which plays a vital role in enhancing drought tolerance.

David Ketchum's Recommendation: Optimal Watering Practices

When it comes to watering your lawn, David Ketchum advises following the right watering practices. In many instances, lawns can withstand prolonged droughts with just one to two days of irrigation per week, as long as 1/2 to 3/4 inches of water is applied each time. However, it is crucial to water only when you observe signs of turf wilt, such as folded leaf blades, a blue-gray tint on the grass, and visible footprints or tire tracks that remain long after being made.

It's important to never overwater to the point of runoff. Runoff occurs when the roots are unable to absorb the excess water, causing it to flow into storm drains, streams, lakes, groundwater, and potentially contaminating them with lawn chemicals, pollutants, and wasting water.

For rotary sprinklers and impact sprinklers, irrigation run times should rarely exceed 60 minutes, while for spray heads, it should be limited to 20 minutes. If your irrigation system surpasses these recommended times, ensure that it is not applying more than 3/4 inches of water in a single watering session. By adhering to these guidelines, you can ensure efficient water usage while promoting the health of your lawn.