Kentucky Bluegrass
Poa pratensis · Cool-season, Perennial, C3 grass
AI-generated identification · may be incorrect
Grass Category
Lawn/Turf Grass
Hardiness Zones
USDA Hardiness Zones 3-7, excellent cold tolerance.
Grass Family
Poaceae, subfamily Pooideae
Variety / Cultivar
Standard Northern Turf Type
About This Grass
Forms a dense, fine to medium-textured turf with boat-shaped leaf tips. Dark green to blue-green color, with considerable winter dormancy browning visible.
Blade Characteristics
Medium-fine width (2-4mm), folded in bud, boat-shaped tip, prominent parallel veins.
Root System
Moderately deep fibrous root system with extensive aggressive rhizomes, moderate thatch tendency, slower establishment from seed.
Growing Information
Origin Region
Europe, Northern Asia, and parts of North America; widely cultivated across temperate regions.
Growth Habit
Aggressively rhizomatous, forming a dense sod and mat.
Sunlight & Water Needs
Full sun to partial shade, moderate to high water needs, fair drought tolerance via summer dormancy.
Mowing & Maintenance
Mow at 2.0 to 3.0 inches, high maintenance level requiring regular fertilization and irrigation.
Special Characteristics
Good wear tolerance and self-repairing via rhizomes, prone to summer stress if unwatered.
Ecological Information
Widely naturalized, provides standard turf ecosystem services and wildlife ground cover.