Lawn Care Guide for Hyde County
Hyde County, South Dakota
Data Story
About Lawn Care in Hyde County, South Dakota
Favorable Growing Conditions in Hyde County
Hyde County earns a lawn difficulty score of 55.3, making it easier to maintain turf here than in much of the state. This Hardiness Zone 4b region offers a slightly more hospitable environment for cool-season grasses compared to the national average of 50.0.
Dry Air and Intense Sun
Annual precipitation of 21.6 inches is lower than the state average of 22.8 inches, requiring careful irrigation planning. With 25 days over 90°F, grass often goes dormant in mid-summer unless consistent moisture is provided to offset the 2,569 growing degree days.
Balanced Soils Support Turf Health
The soil pH of 6.97 is nearly perfect for lawn health, sitting right at the top of the 6.0-7.0 ideal range. A balanced texture of 27.1% clay and 28.7% sand provides a solid foundation for root development with decent natural drainage.
Resilient Performance During Dry Spells
The county has seen only 14 weeks of drought in the last year, a significantly better record than many neighbors. Currently, only 12.0% of the county is abnormally dry, though water conservation remain vital given the low annual rainfall totals.
Success in Zone 4b Landscapes
Hardy species like Tall Fescue or Kentucky Bluegrass thrive here when seeded in late August or early September. Be mindful of the short window between the May 12th spring frost and the September 29th fall frost for establishing new growth.
Lawn Difficulty Score
Recommended Grasses
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
21.6"
Growing Degree Days
2,568.733
Base 50F
Last Spring Frost
05/12
First Fall Frost
09/29
Days Above 95F
25
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
2.0"
inches of water
Monthly Water
6,141
gallons
Estimated Monthly Cost
$49.13
at $0.008/gallon average
Estimates based on 22" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Hyde County
Drought Stress
With only 22 inches of annual rainfall, lawns in Hyde County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
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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