Lawn Care Guide for Richland County
Richland County, North Dakota
USDA SSURGO / PHZMData Story
About Lawn Care in Richland County, North Dakota
Ideal Growth in the Southeast
Richland County boasts a lawn difficulty score of 56.9, which is significantly better than the national average. Situated in Zone 4a, the county offers a robust environment for cool-season turf to thrive with standard maintenance.
Abundant Rainfall for Greenery
Richland receives a generous 24.1 inches of rain annually, the highest in this group and well above the state average. This extra moisture supports a high 2458 Growing Degree Days, fueling rapid grass growth throughout the summer.
Heavy Clay Requires Care
The soil contains 22.4% clay, which helps retain the county's high rainfall but can lead to drainage issues. A pH of 7.30 is slightly above the ideal range, so consider core aeration to help oxygen and nutrients reach the roots.
Resilient Against Dryness
Despite 12 weeks of drought last year, the county's high annual rainfall helps lawns bounce back quickly. Currently, there is no drought in the area, allowing you to focus on routine care rather than emergency watering.
A Long and Healthy Season
Richland enjoys an early spring start with a last frost date of May 6th. This extended season, ending October 6th, provides the perfect opportunity to establish a lush, thick carpet of Kentucky Bluegrass.
Lawn Difficulty Score
Top Grass Fit for Richland County
Excellent match
Scotts EZ Seed Patch & Repair Sun & Shade
Scotts
Top cultivar score: 92/100
Estimated — county soil data incomplete.
Zone 4a vs Kentucky Bluegrass's 3–7 band.
Soil pH 7.2963654325754 vs Kentucky Bluegrass's 6–7 window.
Precipitation 24.095" + soil AWC vs Kentucky Bluegrass's 30–40" need.
Growing-degree-days + frost window vs a beginner-difficulty establishment.
EZ Seed is the duct tape of lawn care — it's not the most elegant solution, but it works, and it works every time. The combination of grass seed, mulch (ground wood fiber), and fertilizer in one product solves the three biggest reasons bare spot repairs fail: poor seed-to-soil contact, seeds drying out, and no starter…
In Richland County, USDA zone 4a, soil pH 7.3, Scotts EZ Seed Patch & Repair Sun & Shade scores 92/100 — a strong zone match, adequate moisture, and a long enough 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
24.1"
Growing Degree Days
2,457.6
Base 50F
Last Spring Frost
05/06
First Fall Frost
10/06
Days Above 95F
12
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
1.7"
inches of water
Monthly Water
5,406
gallons
Estimated Monthly Cost
$43.25
at $0.008/gallon average
Estimates based on 24" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Richland County
Drought Stress
With only 24 inches of annual rainfall, lawns in Richland 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: Richland County
Lawn Verdict
Richland 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 2,457.6 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 (24.1 inches) generally supports healthy lawns with minimal supplemental watering.
Seasonal Breakdown
Wait until after May 6 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 71.2°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before October 6; this is the best renovation window. Winters are harsh (January averages 9.8°F); avoid foot traffic on frozen turf and plan snow mold prevention.
Watering Guidance
Low annual precipitation (24.1 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
Richland County is close to the North Dakota average temperature, it is somewhat wetter than the state average, 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 Richland County in?
What is the best grass for Richland County?
How much rainfall does Richland County get?
What is the soil pH in Richland 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 Richland County