Reviving Drought-Stressed St. Augustine Grass in Houston

A Houston homeowner's St. Augustine lawn is turning brown in sunny areas despite daily 30-minute watering and fungicide treatment. The soil is hard and dry, and the grass blades are limp by evening.

Diagnosis: Severe Moisture Deficit

The turf is in survival mode, not fungus. Without rain, the soil has no water reserve. The only way to revive it is to deeply saturate the root zone, simulating a heavy rainfall.

Deep Watering Protocol

1. Water the worst areas for 1 hour.
2. Wait 2 hours for absorption.
3. Water again for 30 minutes.
4. If runoff occurs, split into 30-minute cycles with 1-hour soak periods.

Repeat this deep soaking every 2–3 days until the grass recovers. A battery-operated hose timer can automate the cycles and save manual effort. Aeration and soil testing can be done once the grass is healthy.