Lawn Care Guide for Big Stone County
Big Stone County, Minnesota
Data Story
About Lawn Care in Big Stone County, Minnesota
Strong results in Western Minnesota
Big Stone County carries a lawn difficulty score of 64.5, making it slightly easier than the state average for lawn care. Located in USDA Hardiness Zone 4b, the region benefits from more growing degree days than many northern counties. This score indicates a favorable environment compared to the national median of 50.0.
Dry climate with long summers
The county enjoys 2,727 growing degree days, which is quite high for Minnesota and supports active growth. However, annual precipitation is low at 25.9 inches, making supplemental irrigation a necessity for green lawns. Mowing typically runs from the early May 1 frost until the first freeze in October.
Clay-rich, alkaline soil profile
Unlike many neighboring counties, the soil here is slightly alkaline with a pH of 7.18. It contains a higher clay content of 25.3% and 30.4% sand, which helps the ground retain moisture during dry periods. Homeowners may need to monitor for iron chlorosis if the pH rises much further above the neutral mark.
Resilient against dry cycles
Big Stone County has faced 11 weeks of drought over the last year, but current data shows 0% of the area in drought or dry conditions. The clay-heavy soil provides a natural buffer against short-term rain deficits by holding water longer. Using a smart irrigation controller can help manage the low 25.9-inch annual rainfall efficiently.
Early start for Zone 4b
A mix of Heat-Tolerant Bluegrass and Turf-Type Tall Fescue is ideal for the high GDD and dry summers here. You can start seeding as early as May 1 due to the favorable spring frost schedule. The long season lasts until the first fall frost on October 8, providing plenty of time for establishment.
Lawn Difficulty Score
Recommended Grasses
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Buffalograss
Bouteloua dactyloides
Climate Snapshot
Annual Precip
25.9"
Growing Degree Days
2,726.7
Base 50F
Last Spring Frost
05/01
First Fall Frost
10/08
Days Above 95F
6
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
1.6"
inches of water
Monthly Water
5,064
gallons
Estimated Monthly Cost
$40.52
at $0.008/gallon average
Estimates based on 26" 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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