Lawn Care Guide for DeKalb County
DeKalb County, Indiana
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Lawn Difficulty Score
Soil Summary
pH
6.4
Texture
Silty clay
Drainage
Very poorly drained
Organic Matter
6.3%
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
38.2"
Growing Degree Days
2,808.7
Base 50F
Last Spring Frost
05/02
First Fall Frost
10/17
Days Above 95F
13
Hardiness Zone
6a
Seeding Calendar — Zone 6A
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
0.6"
inches of water
Monthly Water
1,796
gallons
Estimated Monthly Cost
$14.37
at $0.008/gallon average
Estimates based on 38" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in DeKalb County
Persistent Drought Conditions
DeKalb County experienced drought conditions for 27 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.