Lawn Care Guide for Scott County
Scott County, Missouri
Data Story
About Lawn Care in Scott County, Missouri
A moderate challenge in Southeastern Missouri
Scott County scores 54.6 for lawn difficulty, placing it slightly above the national median but below the Missouri state average. As a Zone 7a region, it faces longer summers and more heat than the northern parts of the state. Growing a perfect lawn here requires a shift toward more heat-tolerant practices and species.
High heat and a long growing season
Residents must manage 52 extreme heat days over 90°F, significantly exceeding the state average of 37. The 4,697 growing degree days indicate a very long and fast-paced growing season fueled by 48.8 inches of rain. This combination creates high humidity and rapid growth, often requiring more frequent mowing and disease monitoring.
Sandy soil with drainage considerations
The soil features a high sand content of 35.1% and a healthy pH of 6.21, which allows for good nutrient availability. While the drainage is listed as subaqueous, the high sand percentage generally helps move water through the surface quickly. Lawns here may require more frequent, lighter fertilization because nutrients can leach through sandy soils faster.
Consistent moisture despite dry alerts
The county endured 18 weeks of drought over the past year and remains 100% abnormally dry today. However, the lack of any severe (D2+) drought area makes it more resilient than much of the state. Utilizing the 48.8 inches of natural rainfall effectively through rain barrels or smart irrigation is key.
Selecting for heat in Zone 7a
With a long season from April 5 to November 6, heat-tolerant grasses like Bermuda or Tall Fescue are the best performers. These species can handle the 52 days of high heat better than traditional northern varieties. Early April is the ideal time to start new projects as the ground warms up.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
48.8"
Growing Degree Days
4,697.25
Base 50F
Last Spring Frost
04/05
First Fall Frost
11/06
Days Above 95F
52
Hardiness Zone
7a
Seeding Calendar — Zone 7A
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 49" 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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