Lawn Care Guide for Griggs County
Griggs County, North Dakota
USDA SSURGO / PHZMData Story
About Lawn Care in Griggs County, North Dakota
Griggs Leads the State in Lawn Ease
Griggs County is a premier spot for North Dakota lawns, boasting a difficulty score of 60.1. This is significantly higher than the state average of 54.0 and the national median of 50.0. The Zone 4a environment here is exceptionally forgiving for home gardeners.
Cool Summers and Ample Precipitation
Lawns benefit from 22.0 inches of annual rain and only 5 days of extreme heat, a perfect recipe for cool-season grasses. The 1,929 growing degree days indicate a shorter, more manageable mowing season. Frost-free growth typically runs from May 17 through September 23.
Balanced and Sandy Soil Mix
The soil pH of 7.25 is slightly alkaline but manageable for most standard turf varieties. With 44.9% sand and 19.1% clay, the soil drains well while maintaining enough structure to support roots. While drainage class data is missing, the high sand content suggests that compaction is rarely a major issue.
No Drought Stress for Griggs
This county has seen 0 weeks of drought over the past year, keeping natural moisture levels high. There are currently no abnormally dry areas, giving your lawn a strong head start. Maintaining high mowing heights will help preserve this natural moisture during the sunniest weeks.
Vibrant Lawns in a Mild Climate
Fine Fescue and Kentucky Bluegrass are ideal for this cool, damp region. The best time to start new turf is shortly after May 17 when the soil begins to warm. You are in one of the most favorable counties for a lush, low-stress lawn.
Lawn Difficulty Score
Top Grass Fit for Griggs County
Strong match
Jonathan Green Black Beauty Ultra
Jonathan Green
Top cultivar score: 78/100
Zone 4a vs Tall Fescue's 3–8 band.
Soil pH 7.25381828403178 vs Tall Fescue's 5.5–6.5 window.
Precipitation 22" + soil AWC vs Tall Fescue's 20–30" need.
Growing-degree-days + frost window vs a intermediate-difficulty establishment.
If you spend any time on lawn care forums, Reddit's r/lawncare, or YouTube lawn channels, one name comes up more than any other: Jonathan Green Black Beauty Ultra. It's practically a cult favorite, and the label, cultivar story, and long-running owner reports explain why. The secret is in the genetics.
In Griggs County, USDA zone 4a, soil pH 7.3, Jonathan Green Black Beauty Ultra scores 78/100 — a strong zone match, adequate moisture, and a workable establishment window.
Why we ruled these out
- Pennington Zenith Zoysia Grass Seed & Mulch — USDA zone 4a is below Pennington Zenith Zoysia Grass Seed & Mulch's effective range (5–10); not recommended for this county.
- Scotts Turf Builder Bermudagrass — USDA zone 4a is below Scotts Turf Builder Bermudagrass's effective range (6–11); not recommended for this county.
See our fit-score methodology for how survivability is determined.
Recommended Grasses
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Buffalograss
Bouteloua dactyloides
Climate Snapshot
Annual Precip
22.0"
Growing Degree Days
1,928.5
Base 50F
Last Spring Frost
05/17
First Fall Frost
09/23
Days Above 95F
5
Hardiness Zone
4a
Seeding Calendar — Zone 4A
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
1.8"
inches of water
Monthly Water
5,623
gallons
Estimated Monthly Cost
$44.98
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 Griggs County
Drought Stress
With only 22 inches of annual rainfall, lawns in Griggs County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
Learn more about regional lawn challenges at The Lawn Report.
Lawn Care Advisory: Griggs County
Lawn Verdict
Griggs County is in USDA hardiness zone 4a, one of the coldest zones in the country. with winter lows reaching around -30.0°F. though only 1,928.5 growing degree days favor cool-season varieties like Kentucky bluegrass and fescue. Wide seasonal temperature swings (61°F between January and July) stress lawns and favor resilient species. Moderate rainfall (22.0 inches) generally supports healthy lawns with minimal supplemental watering.
Seasonal Breakdown
Wait until after May 17 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 67.6°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before September 23; this is the best renovation window. Winters are harsh (January averages 6.7°F); avoid foot traffic on frozen turf and plan snow mold prevention.
Watering Guidance
Low annual precipitation (22.0 inches) makes irrigation essential for maintaining green turf through summer. The county is currently free of drought conditions. Cool summers reduce water demand; overwatering is a bigger risk than drought stress.
Regional Context
Griggs County is close to the North Dakota average temperature, USDA zone 4a helps guide grass selection compared to neighboring counties.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is Griggs County in?
What is the best grass for Griggs County?
How much rainfall does Griggs County get?
What is the soil pH in Griggs County?
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.
Explore more data for Griggs County