grassy weed · annual
Poa annua
Bright yellow-green, fine-textured grass finer than most turf, with distinctive seed heads that appear papery and light-colored.
Not sure if it's Annual Bluegrass (Poa annua)?
Snap a photo — our free AI tells you in seconds. No app needed.
Hand-pulling is impractical — Poa annua produces thousands of seeds per plant. Pre-emergent herbicide in fall is the most effective approach.
Apply a pre-emergent (dithiopyr) in fall to prevent germination, or use glyphosate for spot treatment in spring before it sets seed. Post-emergent options are limited.
Maintain healthy perennial turf through proper fall seeding; reduce shade and improve drainage.
Maintain healthy perennial turf through proper seeding in fall; reduce shade and improve drainage.
Scotts Halts Crabgrass & Grassy Weed Preventer
Scotts Halts Crabgrass & Grassy Weed Preventer
The Andersons Barricade Professional-Grade Granular
The Andersons Barricade Professional-Grade Granular
As an Amazon Associate, Measure Lawn earns from qualifying purchases.
Stop fighting weeds one by one →
A thick, healthy lawn is the best weed killer there is. Measure your yard on a satellite map in 30 seconds — we'll build a personalised schedule (fertiliser, seed, mowing, weed control) so annual bluegrass (poa annua) doesn't come back.
Measure my lawn — it's free →Bright yellow-green, fine-textured grass finer than most turf, with distinctive seed heads that appear papery and light-colored.
Herbicide spray. Hand-pulling is impractical — Poa annua produces thousands of seeds per plant. Pre-emergent herbicide in fall is the most effective approach.
Annual Bluegrass (Poa annua) is rated moderate to control. Consistent treatment over a season usually does the job.
Maintain healthy perennial turf through proper seeding in fall; reduce shade and improve drainage.