Lawn Care Guide for Ste. Genevieve County
Ste. Genevieve County, Missouri
Data Story
About Lawn Care in Ste. Genevieve County, Missouri
Moderate Difficulty in Ste. Genevieve
The lawn difficulty score of 57.5 indicates that Ste. Genevieve is slightly more challenging than the average Missouri county. Maintaining a lawn in Zone 6b requires careful attention to the specific local soil and heat factors.
Hot Summers and Ample Rain
The area faces 46 extreme heat days, which is much higher than the Missouri average of 37. While 43.7 inches of annual precipitation provides the necessary water, the intense summer heat can quickly lead to turf dormancy.
Addressing Drainage and Acidity
The soil has a pH of 5.96, suggesting that a light application of lime may help optimize nutrient uptake. Because the drainage is classified as subaqueous, ensure your lawn is graded properly to prevent standing water during heavy rains.
Bracing for Severe Dry Spells
With 2.2% of the area in severe drought and the entire county abnormally dry, water conservation is vital. The county endured 24 weeks of drought last year, so choosing drought-resistant seed varieties is a smart long-term move.
Selecting the Right Grass Types
While frost dates are locally variable, Zone 6b generally supports hearty cool-season grasses like Tall Fescue. Focus on varieties that can handle the 46 days of extreme heat to ensure your lawn stays resilient all year.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
43.7"
Growing Degree Days
N/A
Base 50F
Last Spring Frost
N/A
First Fall Frost
N/A
Days Above 95F
46
Hardiness Zone
6b
Seeding Calendar — Zone 6B
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Begin mowing when grass reaches 3 inches
- Start irrigation if rainfall is below 1 inch/week
- Soil test every 2-3 years — adjust lime or sulfur as needed
Summer
- Mow at recommended height weekly
- Water deeply 1-2 times per week (1 inch total)
- Avoid fertilizing cool-season grasses in peak heat
- Scout for grubs and treat if >10 per sq ft
Fall
- Overseed warm-season lawns if thinning
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Apply pre-emergent for winter weeds
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
0.3"
inches of water
Monthly Water
920
gallons
Estimated Monthly Cost
$7.36
at $0.008/gallon average
Estimates based on 44" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Ste. Genevieve County
Persistent Drought Conditions
Ste. Genevieve County experienced drought conditions for 24 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
Learn more about regional lawn challenges at The Lawn Report.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Data sourced from USDA SSURGO, NOAA Climate Normals (1991-2020), USDA Plant Hardiness Zone Map, and US Drought Monitor. Lawn difficulty scores and grass recommendations are estimates for informational purposes only.
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