Lawn Care Guide for Morgan County
Morgan County, Illinois
Data Story
About Lawn Care in Morgan County, Illinois
A Solid Foundation in Morgan County
Morgan County holds a lawn difficulty score of 73.5, indicating it is generally easier to manage a lawn here than in the average American county. This Zone 6a rating reflects a climate that is slightly more favorable than the overall Illinois average.
Frequent Heat Days Require Care
The county experiences 32 extreme heat days per year, surpassing the state average of 27. With 40.3 inches of annual rainfall, you have a good water supply, but you must time your watering to help the grass survive the month-long stretch of 90°F+ days.
Sandy Loam Advantages
The soil contains 22.7% sand, which is higher than many neighboring counties and aids in drainage. Combined with a nearly ideal pH of 6.55, your grass will have an easy time establishing a deep and healthy root architecture.
Fighting Through Severe Dryness
Currently, 100% of the county suffers from severe drought (D2+), following 30 weeks of drought over the past year. Use a smart irrigation controller to maximize the efficiency of your water use during these extended dry spells.
Seed Early for Best Results
The growing season begins after the last frost on April 19 and concludes around October 21. For a resilient lawn, choose a sun-and-shade mix that can handle the 32 days of intense summer heat while thriving in the cool spring.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
40.3"
Growing Degree Days
3,622.3
Base 50F
Last Spring Frost
04/19
First Fall Frost
10/21
Days Above 95F
32
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
0.5"
inches of water
Monthly Water
1,603
gallons
Estimated Monthly Cost
$12.82
at $0.008/gallon average
Estimates based on 40" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Morgan County
Persistent Drought Conditions
Morgan County experienced drought conditions for 30 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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