Lawn Care Guide for Clearwater County
Clearwater County, Minnesota
Data Story
About Lawn Care in Clearwater County, Minnesota
Challenging Growth in Zone 3b
Clearwater County faces a difficult lawn score of 44.8, reflecting the harsh realities of its Zone 3b climate. This makes it tougher to maintain a lush lawn here than in the average Minnesota county.
Short Seasons and Cool Temps
With only 1,796 growing degree days, the season for lawn recovery and growth is quite limited. The county sees 27.6 inches of rain annually and very few heat days, leading to a slow-paced mowing schedule.
Sandy Loam Needs Nutrient Boosts
The soil is 52.6% sand and has a pH of 5.71, which is slightly more acidic than most grasses prefer. Regular fertilization and light lime applications help overcome the nutrient leaching common in sandy soils.
Widespread Dryness Persistent
Every acre of Clearwater County is currently classified as abnormally dry, following 41 weeks of drought over the last year. Prioritize watering the most visible or high-traffic areas to conserve water during these lean times.
Hardy Varieties for Cold Climates
Select cold-hardy Fine Fescues that can survive the deep freezes of Zone 3b. Wait until after May 18 to start your lawn, ensuring your new grass has enough time to harden before September frosts.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
27.6"
Growing Degree Days
1,795.5
Base 50F
Last Spring Frost
05/18
First Fall Frost
09/27
Days Above 95F
4
Hardiness Zone
3b
Seeding Calendar — Zone 3B
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
1.3"
inches of water
Monthly Water
4,113
gallons
Estimated Monthly Cost
$32.90
at $0.008/gallon average
Estimates based on 28" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Clearwater County
Persistent Drought Conditions
Clearwater County experienced drought conditions for 41 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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