Annual Bluegrass

Poa annua · Cool-season, annual (sometimes short-lived perennial), C3

AI-generated identification · may be incorrect
Annual Bluegrass

Grass Category

Invasive/Weed, Lawn/Turf

Hardiness Zones

USDA Zones 2-10, highly adaptable, germinates in fall/spring, dies back in heat

About This Grass

Light green, low-growing turf reaching 1 to 6 inches tall with prominent, numerous whitish seed heads even at low cuts

Blade Characteristics

Fine-to-medium width, soft texture, distinct boat-shaped tip, folded vernation, membranous ligule

Growing Information

Growth Habit

Bunch-type to weakly spreading, forms dense patches, prolific seed producer

Sunlight & Water Needs

Thrives in full sun to partial shade with frequent moisture, prefers compacted or wet soils

Mowing & Maintenance

Requires frequent mowing due to rapid seed head production at very low heights; high maintenance weed

Identified on 10/5/2026