Lawn Care Guide for Sauk County
Sauk County, Wisconsin
Data Story
About Lawn Care in Sauk County, Wisconsin
Successful Lawns in the Driftless Region
Sauk County earns a strong lawn difficulty score of 71.0, making it one of the most hospitable counties in Wisconsin for a green thumb. Situated in Hardiness Zone 5a, it offers a robust environment for most cool-season grass varieties.
Generous Rains and Strong Growth
The county receives 37.3 inches of precipitation annually, outperforming the state average of 34.5 inches. This moisture supports a healthy 2,620 growing degree days, though 8 extreme heat days require careful water management in July.
Near-Ideal Soil for Vibrant Turf
A soil pH of 5.88 is very close to the optimal range, meaning your lawn will respond well to standard fertilization. The soil balance of 12.2% clay and 39.0% sand provides a reliable structure for root development and moisture retention.
Current Dryness Requires Vigilance
While Sauk is generally lush, 85% of the county is currently abnormally dry following 17 weeks of drought last year. Watch for signs of stress like curling blades or lingering footprints, and water deeply to encourage deep, resilient roots.
Maximize Your Five-Month Window
The primary growing season runs from May 2nd to October 7th, providing a solid five months of active growth. Kentucky Bluegrass and Perennial Ryegrass are excellent choices for the Sauk County climate and soil profile.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
37.3"
Growing Degree Days
2,620.44
Base 50F
Last Spring Frost
05/02
First Fall Frost
10/07
Days Above 95F
8
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
0.6"
inches of water
Monthly Water
1,997
gallons
Estimated Monthly Cost
$15.98
at $0.008/gallon average
Estimates based on 37" 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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