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  • Writer's pictureMy Three Sons

Title: The Road to Recovery: Treating a Heat-Stressed Lawn

As summer's scorching temperatures set in, your once lush and vibrant lawn might start to show signs of distress. Heat stress can leave your grass looking brown, brittle, and lifeless. But fear not! With a little TLC and the right approach, you can nurse your lawn back to health and restore its green glory. In this guide, we'll walk you through the steps to effectively treat a heat-stressed lawn.

1. Water Wisely

Proper hydration is key to nursing your lawn back to health. However, it's essential to water your lawn correctly to avoid waste and encourage deep root growth. Water your lawn early in the morning or late in the evening to reduce evaporation. Aim for 1 to 1.5 inches of water per week, either from rainfall or irrigation. Water deeply and infrequently to encourage roots to reach deeper into the soil, making your lawn more resilient to heat stress.

2. Mowing Matters

When your lawn is stressed by heat, it's best to adjust your mowing habits. Raise the height of your mower's blades to about 3 inches. Taller grass shades the soil, conserving moisture and reducing stress. Avoid mowing during the hottest part of the day and never remove more than one-third of the grass height in a single mowing session.

3. Fertilize Thoughtfully

During periods of heat stress, your lawn's nutrient needs might change. Applying too much fertilizer can actually exacerbate the problem. Opt for a slow-release, balanced fertilizer with a lower nitrogen content to promote gradual growth without putting additional stress on the grass. Follow the recommended application rates and timings to prevent over-fertilization.

4. Aerate and Overseed

Compacted soil can restrict water and nutrient uptake by the roots. Aerating your lawn helps improve soil structure, allowing water and nutrients to reach the roots more effectively. Consider overseeding with drought-resistant grass varieties to fill in any bare spots and enhance your lawn's overall resilience.

5. Manage Thatch

Thatch buildup can create a barrier that prevents water and nutrients from reaching the soil. If your lawn has a thatch layer thicker than half an inch, consider dethatching using a dethatching rake or machine. This process can improve air and water movement in the soil, aiding in your lawn's recovery.

6. Provide Shade

If possible, provide temporary shade for your heat-stressed lawn. This could involve placing shade cloth over particularly vulnerable areas or using strategically placed outdoor furniture to create shaded spots. Shade can significantly reduce the heat stress experienced by your grass during the hottest parts of the day.

7. Be Patient

Recovering a heat-stressed lawn takes time. Even with your best efforts, it might take a few weeks for your lawn to bounce back fully. Keep up with your maintenance routine, and don't be discouraged by slow progress. The rewards of a lush, healthy lawn will be well worth the wait.


Heat stress might cause your lawn to lose its vibrancy, but with the right approach, you can revive it and restore its natural beauty. Water wisely, adjust your mowing habits, fertilize thoughtfully, and provide your lawn with the care it needs. By following these steps and being patient, you'll see your once-heat-stressed lawn transform into a resilient, lush carpet of greenery once again. Remember, prevention is key, so consider implementing these practices even before the next heatwave hits to keep your lawn thriving all summer long.

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