Cool-Season Grass
Kentucky Bluegrass
Poa pratensis
Growing Specifications
Drought Tolerance
2/5
Shade Tolerance
2/5
Traffic Tolerance
4/5
Maintenance Level
4/5
Mowing Height2.5" - 3.5"
Water Needs30-40"/yr
Optimal pH6 - 7
Ideal Growing Zones
Zone 3AZone 3BZone 4AZone 4BZone 5AZone 5BZone 6AZone 6BZone 7A
Zone map coming soon
Top Cultivars
Award
Disease resistantDense turf
Midnight
Dark colorHeat tolerant
Bewitched
Fine textureShade tolerant
Counties Where Kentucky Bluegrass Thrives
Sierra County
CA
Benton County
AR
Carroll County
AR
Broomfield County
CO
Fulton County
AR
Washington County
AR
Alpine County
CA
Alamosa County
CO
Arapahoe County
CO
Boulder County
CO
Archuleta County
CO
Lassen County
CA
Modoc County
CA
Mono County
CA
Adams County
CO
Baca County
CO
Bent County
CO
Apache County
AZ
Coconino County
AZ
Navajo County
AZ
Frequently Asked Questions
What USDA hardiness zones does Kentucky Bluegrass grow best in?
Kentucky Bluegrass performs best in USDA hardiness zones 3a through 7a.
How much water does Kentucky Bluegrass need per year?
Kentucky Bluegrass typically requires 30–40 inches of water per year. It has limited drought tolerance and needs consistent irrigation during dry spells.
What is the recommended mowing height for Kentucky Bluegrass?
Mow Kentucky Bluegrass to a height of 2.5–3.5 inches. Maintaining the correct height helps the grass develop deep roots, resist weeds, and recover from heat or drought stress.
How drought-tolerant is Kentucky Bluegrass?
Kentucky Bluegrass has poor drought tolerance (2/5). It requires reliable rainfall or irrigation and is not suitable for counties with frequent drought conditions.
How does Kentucky Bluegrass perform in shade?
Kentucky Bluegrass has poor — prefers full sun (2/5). Plant it only in areas that receive at least 6–8 hours of direct sunlight daily.
What is the maintenance level for Kentucky Bluegrass?
Kentucky Bluegrass requires high maintenance (4/5). The ideal soil pH range is 6–7. Expect regular fertilization, dethatching, and careful irrigation management.
Grass species data compiled from university extension publications and USDA resources. Growing recommendations are general guidelines — consult your local extension office for specific advice.