Lawn Care Guide for Trempealeau County
Trempealeau County, Wisconsin
Data Story
About Lawn Care in Trempealeau County, Wisconsin
Optimal Growing in Western Wisconsin
Trempealeau County earns a robust lawn difficulty score of 72.2, well above the state average of 64.4. This high score indicates that environmental conditions here are very favorable for maintaining a healthy, vibrant lawn.
High Energy and Higher Heat
A generous 2,541 growing degree days provide ample energy for turf development throughout the season. However, 9 extreme heat days—higher than the state average—mean you must watch for signs of heat stress during July.
Solid Soil Foundation
The soil pH of 5.79 is close to the ideal range, requiring only light adjustments to optimize nutrient availability. A mix of 41.3% sand and 12.3% clay offers a good balance of drainage and water-holding capacity.
Reliable Moisture Levels
Lawns here are currently free from drought stress, with only 5 weeks of drought recorded over the past year. This consistent moisture allows for more aggressive fertilizing and overseeding programs without as much risk of crop failure.
Strong Summer Growth
Hardiness Zone 4b supports Kentucky Bluegrass and Turf-Type Tall Fescues exceptionally well. Plan to seed after May 9 to take full advantage of the long growing season that typically lasts until October 5.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
35.2"
Growing Degree Days
2,540.7
Base 50F
Last Spring Frost
05/09
First Fall Frost
10/05
Days Above 95F
9
Hardiness Zone
4b
Seeding Calendar — Zone 4B
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
0.8"
inches of water
Monthly Water
2,505
gallons
Estimated Monthly Cost
$20.04
at $0.008/gallon average
Estimates based on 35" 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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