Lawn Care Guide for Brookings County
Brookings County, South Dakota
Data Story
About Lawn Care in Brookings County, South Dakota
Brookings Offers Ideal Lawn Conditions
A high score of 57.7 makes Brookings County one of the most lawn-friendly areas in the state. This Zone 4b county benefits from cooler summers and better-than-average environmental factors for grass health.
Cooler Summers Reduce Lawn Stress
With only 7 extreme heat days per year, grass here suffers much less heat stress than the state average of 24 days. The 25.2 inches of annual precipitation is relatively high for South Dakota, keeping watering needs manageable.
Neutral pH Supports Turf Health
Soil pH sits at 7.04, which is very close to the ideal range for a lush, green lawn. The mixture of 24.9% clay and 29.3% sand provides enough body to retain moisture without becoming waterlogged.
Resilient Against Prolonged Dryness
Brookings County experienced 20 weeks of drought last year, the lowest among its immediate neighbors. While 100% of the area is currently dry, the cooler 70.3°F July average helps turf recover quickly from moisture deficits.
Harnessing the Early May Start
Fine fescues and Kentucky Bluegrass are excellent choices for the 2,324 growing degree days available here. Start seeding after May 6th and expect to wrap up your major lawn projects before the October 3rd frost.
Lawn Difficulty Score
Recommended Grasses
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Buffalograss
Bouteloua dactyloides
Climate Snapshot
Annual Precip
25.2"
Growing Degree Days
2,323.8
Base 50F
Last Spring Frost
05/06
First Fall Frost
10/03
Days Above 95F
7
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
5,035
gallons
Estimated Monthly Cost
$40.28
at $0.008/gallon average
Estimates based on 25" 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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