How to Keep Cool-Season Grasses Healthier Than Ever
As summers grow hotter across Ohio and Michigan, many homeowners are discovering their lush spring lawns turning into brown, struggling patches by August. The team at NexGreen understands this challenge and wants to help you understand how different cool-season grasses handle dry conditions and what you can do to protect your investment.

Understanding Cool-Season Grass Drought Responses
Unlike warm-season varieties, our northern turfgrasses face significant stress when temperatures soar and rainfall disappears. Each type has developed unique coping mechanisms:
Turf-Type Tall Fescue
- Root Depth Advantage: Penetrates 2-3 feet into soil to find moisture
- Color Retention: Maintains better green color during dry spells than other cool-season options
- Recovery Ability: Bounces back effectively with proper watering
- Best For: Most Ohio and Michigan lawns, especially in drought-prone areas
Kentucky Bluegrass
- Survival Strategy: Goes completely brown to conserve resources
- Drought Limit: Can survive 4-6 weeks in dormancy
- Recovery Needs: Requires consistent moisture to green up again
- Best For: Areas with reliable summer rainfall or irrigation systems
Ryegrass & Bentgrass
- Shallow Roots: Makes them highly vulnerable to drying out
- Stress Signs: First to show wilting and browning
- Water Demands: Need frequent irrigation during dry periods
- Best For: Temporary lawns or overseeding, not primary turf in drought areas
Spotting Trouble: Early Drought Warning Signs
Catching drought stress early makes all the difference. Watch for these red flags:
- The Footprint Test: Walk across your lawn – if footprints remain visible for more than 30 minutes, your grass is dehydrated
- Color Changes: Vibrant green fades to bluish-gray, then straw yellow
- Leaf Behavior: Blades fold lengthwise like a taco to conserve moisture
- Growth Changes: Noticeably slower growth between mowings
- Soil Conditions: Ground becomes hard; cracks may appear in severe cases
Pro Tip: If you see these signs, contact NexGreen immediately! Early intervention prevents permanent damage.
Water-Wise Strategies for Heat Waves
1. The Deep Watering Method
- Amount: 1-1.5 inches per session (including rainfall)
- Frequency: 2-3 times weekly
- Why It Works: Encourages deeper root growth for better drought resistance
- Measurement Trick: Place empty tuna cans around your lawn to measure output
2. Timing Is Everything
- Best Time: 4-8 a.m. (minimal evaporation)
- Avoid: Evening watering (promotes fungal growth)
- Never Water: Midday (up to 60% lost to evaporation)
3. Irrigation System Upgrades
- Smart Controllers: Adjust automatically based on weather
- Moisture Sensors: Prevent overwatering
- Regular Maintenance: Fix leaks and ensure even coverage

More Drought Protection Tips
- Mowing Adjustments:
- Raise height to 3-4 inches for tall fescue
- Keep bluegrass at 2.5-3 inches
- Taller grass shades soil, reducing evaporation
- Soil Care:
- Annual core aeration relieves compaction
- Topdress with 1/4″ compost to improve moisture retention
- For sandy soils, add organic matter to increase water-holding capacity
- Fertilizer Caution:
- Avoid nitrogen applications during drought
- Resume feeding when cooler, wetter weather returns
- Traffic Control:
- Limit foot traffic on stressed lawns
- Postpone major lawn projects until fall
The Four Stages of Drought Stress & Recovery
Stage 1: Early Warning Signs
- Symptoms: Slight wilting, footprint persistence
- Action: Deep watering can fully reverse effects
Stage 2: Visible Stress
- Symptoms: Patchy appearance, obvious leaf folding
- Action: 3-5 days of consistent watering needed
Stage 3: Pre-Dormancy
- Symptoms: Greenish-brown color, minimal growth
- Action: Requires several days of heavy irrigation
- Avoid: Mowing – can damage stressed plants
Stage 4: Full Dormancy
- Symptoms: Uniform brown color, thinning turf
- Action: 2-3 weeks of thorough watering needed
- Warning: Poor soil areas may not recover
Post-Drought Recovery Plan
When conditions improve:
- Gradually reduce watering over 10-14 days
- Apply balanced fertilizer to support regrowth
- Overseed thin areas in early fall
- Monitor for pests that target weakened grass
- Continue deep watering to maintain drought tolerance
Professional Help Available
Maintaining a drought-resistant lawn takes knowledge and consistent care. If you’d rather leave it to the experts, contact your local pest care experts at NexGreen. We offer lawn care services in Ohio communities around the areas of Westerville, OH and Columbus, OH.
We also provide pest control and lawn care services in Michigan for areas near Sterling Heights, MI and Rochester Mills, MI.
No matter your location, in Ohio or Michigan, we offer customized plans to keep your lawn green year-round. Call us now!