Water-Wise Lawn Care: Five Tips to Conserve & Protect Local Waterways

Lush lawns needn’t drain reservoirs. In the DC metro area, growing population strains the Potomac. These five habits keep your grass green while leaving water for ecosystems.

1. Water Once Weekly, One Inch Deep

Place a coffee can in the sprinkler zone. Run until it collects 1 inch. Note the time—that’s your weekly runtime. Adjust for rainfall.

2. Mulch to Retain Moisture

Mulch beds and containers to reduce evaporation, suppress weeds, and moderate soil temperature. Organic mulches also improve soil structure over time.

3. Water Early Morning

Pre-dawn to 10 AM minimizes evaporation, reduces fungal risk (leaves dry by noon), and takes advantage of calmer winds. Plants absorb water more efficiently.

4. Aim Precisely

Adjust sprinklers to hit plants, not pavement. Soaker hoses deliver water directly to root zones with zero runoff. Watering cans suit containers perfectly.

5. Enjoy the Results

A healthy lawn maintained responsibly becomes a point of pride—and a conversation starter about stewardship.