Rough Bluegrass
Poa trivialis · Cool-season, perennial, C3
AI-generated identification · may be incorrect
Grass Category
Lawn/Turf, Wetland/Riparian
Hardiness Zones
USDA Zones 3-9, excellent cold tolerance but suffers in summer heat.
About This Grass
Forms a creeping, yellowish-green patch that stands out in lawns, typically growing 6-12 inches tall.
Blade Characteristics
Medium-narrow width, folded vernation, with prominent pointed ligules and boat-shaped tips.
Growing Information
Growth Habit
Stoloniferous, forms a dense, shallow-rooted mat.
Sunlight & Water Needs
Thrives in moist to wet, shaded soils; poor drought tolerance.
Mowing & Maintenance
Mow at 1.5-2.5 inches. High maintenance as a weed in desirable turf, low overall tolerance to stress.
Identified on 9/28/2026