Kentucky Bluegrass (mixed with others)
Poa pratensis · Cool-season, Perennial, C3 carbon fixation
Grass Family
Poaceae, subfamily Pooideae, tribe Poeae
Grass Category
Lawn/Turf Grass
Variety / Cultivar
Common/Unspecified (likely a residential turf mix)
Hardiness Zones
USDA Hardiness Zones 2-7; excellent cold tolerance; enters winter dormancy; poor heat tolerance in southern climates.
About This Grass
A dark green turf grass that forms a smooth, dense carpet. In this image, it appears as the fine-textured green base surrounding the weeds. It maintains a medium-green color and reaches a height of 6-24 inches if left unmowed, producing panicle-type seed heads.
Blade Characteristics
Fine to medium width (2-4mm); V-shaped or flat cross-section; distinctive boat-shaped (keeled) tip; dark green to blue-green color; folded in the bud; membranous ligule; no auricles.
Root System
Produces extensive underground rhizomes; moderate depth; forms a dense thatch layer; moderate establishment speed from seed but excellent sod strength.
Growing Information
Origin Region
Native to Europe, North Asia, and Morocco; widely naturalized in North America and temperate climates.
Growth Habit
Rhizomatous (spreading via underground stems), form a dense, sod-forming mat; moderate rate of spread.
Sunlight & Water Needs
Prefers full sun (minimum 6 hours) but tolerates light shade; requires consistent moisture; moderate to high watering needs; goes dormant during severe drought/heat.
Mowing & Maintenance
Ideal height 2.5 to 3.5 inches; moderate to high frequency; requires 2-4 lbs Nitrogen per 1000 sq ft annually; high maintenance level.
Special Characteristics
Excellent wear tolerance and recovery due to rhizomes; high-quality appearance; poor salt tolerance; susceptible to dollar spot and leaf spot in high humidity.
Ecological Information
Introduced and naturalized; provides stable ground cover for erosion control; serves as forage for some lepidoptera larvae; often blended with Perennial Ryegrass or Fine Fescue for genetic diversity.