Lawn Care Guide for Logan County
Logan County, Colorado
USDA SSURGO / PHZMThis week in Logan County · next up in about 4 weeks (Aug 13)
Get ready to seed cool-season grass — the best fall window is about to open.
Data Story
About Lawn Care in Logan County, Colorado
Managing High Summer Heat
Logan County's score of 41.8 sits comfortably above the state average of 37.4, though it remains more difficult than the national median. This Zone 5b county provides a solid foundation for lawns if you can handle the summer heat.
Intense Heat and Fast Growth
The county faces 53 extreme heat days, which is nearly double the state average of 27 days. While 16.6 inches of rain helps, the 3,016 growing degree days mean your grass will grow fast and need frequent mowing.
Nearly Perfect Soil Balance
The soil pH of 7.05 is nearly perfect for lawn health, falling right at the edge of the ideal 6.0-7.0 range. A balanced mix of 48.8% sand and 17.5% clay provides decent drainage without losing all moisture too quickly.
Severe Localized Drought
Conditions are currently tough with 100.0% of the area abnormally dry and over half in severe drought. After 30 weeks of drought this past year, focusing on water-efficient irrigation is vital for lawn survival.
Best Seeding for Logan
Turf-type Tall Fescue is a great choice to withstand the 53 days of high heat in this Zone 5b region. Start your lawn after May 10th to avoid the last spring frost and ensure steady growth.
Lawn Difficulty Score
Top Grass Fit for Logan County
Excellent match
Jonathan Green Black Beauty Ultra
Jonathan Green
Top cultivar score: 86/100
Zone 5b vs Tall Fescue's 3–8 band.
Soil pH 7.04883827603939 vs Tall Fescue's 5.5–6.5 window.
Precipitation 16.647499999999997" + 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 Logan County, USDA zone 5b, soil pH 7.0, Jonathan Green Black Beauty Ultra scores 86/100 — a strong zone match, adequate moisture, and a long enough establishment window.
Why we ruled these out
- Scotts Turf Builder Bermudagrass — USDA zone 5b 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
Buffalograss
Bouteloua dactyloides
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Choosing grass in Logan County
Severe drought (30 wk in drought / yr) is the main thing shaping grass choice in Logan County. Here's how to work with it — then the specific pick.
- Drought-tolerant grass seedWhat survives where water is scarce and often restricted.
- Tall Fescue, explainedTraits, care, and where Tall Fescue wins — the species behind your top match.
Top match for Logan County: Tall Fescue
See the full breakdownPremium Grass Seeds is a sister site in our network. We may earn a commission from qualifying purchases made through its retailer links — this never affects your price. Guidance here reflects your county’s climate and soil data, not hands-on testing.
Climate Snapshot
Annual Precip
16.6"
Growing Degree Days
3,015.55
Base 50F
Last Spring Frost
05/10
First Fall Frost
10/09
Days Above 95F
53
Hardiness Zone
5b
Seeding Calendar — Logan County
Personalized to this county’s frost dates — a 152-day growing season. Windows below are computed from local last-spring and first-fall frost normals, so they differ county-to-county even within USDA Zone 5B.
Plan your seeding — Logan County
Pick a grass and a goal to get a personalized schedule anchored to this county’s frost dates.
- 1Prepare the seedbedMay 9 – May 22
Mow low, dethatch or rake, and loosen the top ½ inch of soil so seed makes good contact.
- 2Sow seedMay 23 – Jun 20
Best window to sow Buffalograss in Logan County, anchored to your local frost dates.
- 3EstablishJun 21 – Jul 18
Protect young seedlings: mow only after they reach ~3 inches and hold off on weed pre-emergents until established.
Loam holds moisture evenly — water about ¼ inch once or twice daily to keep the top inch of the seedbed consistently moist until germination.
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
2.5"
inches of water
Monthly Water
7,700
gallons
Estimated Monthly Cost
$61.60
at $0.008/gallon average
Estimates based on 17" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Logan County
Drought Stress
With only 17 inches of annual rainfall, lawns in Logan County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
Persistent Drought Conditions
Logan County experienced drought conditions for 30 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
Learn more about regional lawn challenges at The Lawn Report.
Lawn Care Advisory: Logan County
Lawn Verdict
Logan County sits in USDA hardiness zone 5b, a transitional zone where cool-season grasses dominate but some warm-season varieties can survive. with winter lows reaching around -15.0°F. and 3,015.55 growing degree days, sufficient for most common turfgrasses. Low rainfall (16.6 inches) means supplemental irrigation is essential during summer months.
Seasonal Breakdown
Wait until after May 10 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 75.2°F) reduce heat stress — maintain regular mowing and moderate watering. With 53.45 days above 90°F annually, warm-season grasses recover faster from summer stress than cool-season types. Aerate and overseed cool-season lawns by early fall, well before October 9; this is the best renovation window. Cool winters (January averages 28.6°F) mean slow or dormant growth; keep debris off the lawn.
Watering Guidance
Low annual precipitation (16.6 inches) makes irrigation essential for maintaining green turf through summer. Currently, 100.0% of the county is in moderate drought according to the US Drought Monitor. Consider reducing irrigation frequency and allowing cool-season lawns to go semi-dormant during peak heat. Standard warm-season watering of 1 inch per week is usually adequate during summer.
Regional Context
Logan County is 4.5°F warmer than the Colorado average, USDA zone 5b helps guide grass selection compared to neighboring counties.
Dig deeper into Logan County
Logan County is a USDA Zone 5B, loamy-soil, cool-season county. Explore the data that shapes its lawn:
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is Logan County in?
What is the best grass for Logan County?
How long is the growing season in Logan County?
How much rainfall does Logan County get?
What is the soil pH in Logan 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 Logan County