Annual Bluegrass

Poa annua · Cool-season, annual, C3

AI-generated identification · may be incorrect
Annual Bluegrass

Grass Category

Invasive/Weed, Lawn/Turf

Hardiness Zones

USDA Zones 2-10; excellent cold tolerance, struggles with extreme summer heat.

About This Grass

Forms a light green, fine-textured turf that grows low to the ground and produces prolific whitish seed heads even when mowed low.

Blade Characteristics

Narrow, folded in vernation, with distinct boat-shaped tips and a prominent membranous ligule.

Growing Information

Growth Habit

Bunch-type, sprawling, dense

Sunlight & Water Needs

Thrives in full sun to partial shade with frequent watering and damp soils; poor drought tolerance.

Mowing & Maintenance

Mow low at 1.5 to 2.5 inches frequently; high maintenance weed status in fine turf.

Identified on 9/25/2026
Annual Bluegrass - Poa annua | Grass Identifier