Lawn Care Guide for Ouray County
Ouray County, Colorado
Data Story
About Lawn Care in Ouray County, Colorado
Standard Mountain Lawn Conditions
Ouray County sits near the state average with a lawn difficulty score of 35.7. While maintaining turf here is more difficult than the national average, the Zone 5b climate is suitable for many hardy mountain grasses.
Wet and Cool Growing Seasons
At 21.3 inches, Ouray receives more annual rain than most of Colorado, though it still falls short of ideal lawn needs. Only 4 days of extreme heat and a low 1,638 growing degree days mean grass grows slowly and stays cool.
Preparing High-Altitude Soil
Specific soil metrics are not currently available, but high-altitude terrains often contain rocky or heavy mineral components. Testing your soil for a pH within the 6.0 to 7.0 range is vital for ensuring nutrient absorption.
Managing Dryness Despite Rain
Despite higher rainfall, the county has experienced 53 weeks of drought over the last year. With 100% of the area currently abnormally dry, consistent irrigation remains necessary to keep lawns healthy.
Success in Zone 5b
Fine Fescue and Kentucky Bluegrass are the top choices for this cooler Zone 5b climate. Aim to seed your lawn after the last frost on May 18 to ensure healthy growth before the autumn chill arrives.
Lawn Difficulty Score
Recommended Grasses
Buffalograss
Bouteloua dactyloides
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
21.3"
Growing Degree Days
1,637.633
Base 50F
Last Spring Frost
05/18
First Fall Frost
10/01
Days Above 95F
4
Hardiness Zone
5b
Seeding Calendar — Zone 5B
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
5,660
gallons
Estimated Monthly Cost
$45.28
at $0.008/gallon average
Estimates based on 21" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Ouray County
Drought Stress
With only 21 inches of annual rainfall, lawns in Ouray County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
Persistent Drought Conditions
Ouray County experienced drought conditions for 53 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
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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