Lawn Care Guide for Ohio County
Ohio County, Indiana
Data Story
About Lawn Care in Ohio County, Indiana
Competitive Lawn Conditions in Ohio County
Ohio County’s lawn difficulty score of 67.4 is nearly on par with the Indiana state average of 71.0. This score reflects a hardiness zone of 6b, making it one of the more favorable regions for residential turf in the state. Maintenance is generally straightforward compared to the national median of 50.0.
High Heat and Ample Rainfall
The county receives 48.5 inches of rain annually, which is well above the state average and near the top of the ideal range for grass. However, lawns face 38 extreme heat days above 90°F, nearly double the state average of 20 days. This combination of high moisture and high heat increases the risk of fungal diseases during the summer.
Ideal pH for Nutrient Absorption
With a soil pH of 6.20, Ohio County falls perfectly within the ideal 6.0-7.0 range for lawn health. The moderately well-drained silt loam provides a balanced environment for root development. Homeowners benefit from a soil structure that handles the area's high rainfall without becoming chronically waterlogged.
Short Dry Spells but High Heat
Lawns here only experienced 4 weeks of drought in the past year, far less than many neighboring counties. Currently, only 16.7% of the county is considered abnormally dry, but the 38 heat days remain a primary stressor. Watering in the early morning is vital to cooling the turf and preventing midday evaporation during heat waves.
Resilient Turf for a 6b Climate
Tall Fescue is a top recommendation for zone 6b due to its superior heat tolerance compared to other cool-season grasses. While local frost dates aren't tracked for this specific county, the warm July average of 77.8°F suggests a mid-autumn seeding is best. A healthy lawn here relies on managing those high-heat summer weeks with consistent hydration.
Lawn Difficulty Score
Soil Summary
pH
6.2
Texture
Silt loam
Drainage
Moderately well drained
Organic Matter
2.2%
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
48.5"
Growing Degree Days
N/A
Base 50F
Last Spring Frost
N/A
First Fall Frost
N/A
Days Above 95F
38
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 48" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
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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