Reviving Brown Grass: The Impact of Drought and Watering Techniques

It takes a long and arduous drought to kill well-established grass in pastures or on open range, but fatalities do occur. In the majority of cases, at least some of the roots remain viable, and when the rain returns, so does the grass. However, the types of grass used in lawns and landscaping are generally less vigorous, and are often cut close to the ground, which means their roots are not as thick and deep. As a result, these grasses tend to turn brown much faster, especially in sandy soils that do not retain water effectively.

Ironically, it is not always true that watering brown grass will bring it back. The success of revival largely depends on the species and variety of the grass, and the timing of the watering.

Conditions and Considerations

While well-established grass can survive severe drought, certain grasses, including those commonly used in lawns and landscapes, are more susceptible to irreversible damage. Watering within two weeks of browning usually results in recovery; however, waiting beyond a month or two significantly reduces the likelihood of restoration.

Grass has relatively deep roots, making it reasonably drought-tolerant. In times of drought, the grass will prioritize preserving its root structure by sacrificing its above-ground portion. Native North American grasses, such as bluestem, can have root systems extending up to three feet deep, enhancing their drought resilience.

Expertise and Local Conditions

Reliable results often require local expertise to understand specific conditions and available options. For example, grass routinely watered in hot, arid places like Arizona might struggle even after just a week without water.

Here are some key points to consider when attempting to revive brown grass:

Species and Variety: Different grass types have varying drought tolerance and recovery rates. Timing: The timing of watering can greatly influence the success of revival. Watering within two weeks of browning often yields better results. Local Expertise: Understanding local conditions and grass types is crucial for effective grass management. Soil Quality: The type of soil (e.g., sandy, clay) and its water retention capacity significantly impact grass health.

Practical Tips for Watering

To ensure the best chances of reviving brown grass:

Assess the Situation: Determine the health of the roots before considering watering. Digging a small hole can help assess the root system. Water Deeply: Use a watering technique that encourages deep root growth, such as soak and dry or deep root watering. Monitor and Adapt: If the grass does not recover, consider adapting your strategy based on local conditions and grass type. Prevent Future Drought: Implement long-term strategies like mulching, choosing drought-tolerant varieties, and maintaining proper soil health.

Drought can significantly impact grass health, but with the right approach and local knowledge, brown grass can often be revived. Understanding the impact of drought, timing, and soil conditions is key to successful grass management and revival.

For more information and guidance tailored to your specific area and grass type, consult a local horticulturist or landscaper. By applying these tips, you can help your brown grass green again and ensure a lush, healthy lawn even in challenging conditions.