Lawn Care Guide for Cottonwood County
Cottonwood County, Minnesota
Data Story
About Lawn Care in Cottonwood County, Minnesota
A Favorable Forecast for Cottonwood Lawns
With a lawn difficulty score of 73.1, maintaining grass here is significantly easier than the national median of 50.0 and the Minnesota average of 63.9. This Zone 5a region offers a hospitable environment for standard cool-season turf, requiring less intensive intervention than neighboring counties.
Ideal Rainfall Meets Summer Heat
Cottonwood receives 31.7 inches of annual precipitation, which falls right within the 30-50 inch ideal range for healthy lawns. However, with 13 extreme heat days per year—five more than the state average—you will need to monitor for heat stress during peak summer weeks.
Nearly Perfect Soil pH Levels
The soil pH of 6.93 sits at the top of the ideal 6.0-7.0 range, meaning nutrients are readily available to your grass. The well-drained soil structure, featuring 25.1% clay and 36.4% sand, ensures that roots stay hydrated without drowning after heavy rains.
Managing Moderate Dry Spells
The county experienced six weeks of drought over the past year, and currently, the entire area is classified as abnormally dry. Focus on deep, infrequent watering early in the morning to encourage deep root growth while conservation measures are in place.
Seize the Zone 5a Season
Kentucky Bluegrass and Fine Fescues thrive here, especially when seeded near the last spring frost on April 30. Aim to finish your fall overseeding before the first frost arrives around October 10 to ensure the turf is established before winter.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Buffalograss
Bouteloua dactyloides
Climate Snapshot
Annual Precip
31.7"
Growing Degree Days
2,951.8
Base 50F
Last Spring Frost
04/30
First Fall Frost
10/10
Days Above 95F
13
Hardiness Zone
5a
Seeding Calendar — Zone 5A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Overseed bare spots once frost risk passes
- 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
- Core aerate compacted areas
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Avoid walking on frozen turf
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
1.2"
inches of water
Monthly Water
3,658
gallons
Estimated Monthly Cost
$29.26
at $0.008/gallon average
Estimates based on 32" 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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