Annual Bluegrass

Poa annua

Found in fields, roadsides, gardens, lawns, disturbed areas. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

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Not native

Not native to Alabama. How scores work Is it native here?

Profile 76%

Height: About 3.6 inches
Light: Partial shade
Soil moisture: Dry to moist

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At a glance

Life cycle: Annual
Bloom: Mid spring
Fruiting season: Spring to summer

Not yet recorded · Spread · Leaves

Recorded in 52 Alabama counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

33CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · Poa

Acrolophus popeanellaClemen's Grass Tubeworm
Agrotis gladiariaSwordsman Dart, Clay-Backed Cut-Worm
Amblyscirtes hegonPepper and Salt Skipper
Amblyscirtes vialisCommon Roadside-Skipper, Black Little Skipper
Ancyloxypha numitorLeast Skipper
Anicla infectaGreen Cutworm Moth
Arugisa luteaCommon Arugisa
Atalopedes huronSachem
Cercyonis pegalaCommon Wood Nymph
Feltia jaculiferaDingy Cutworm

Show all 33

Fissicrambus mutabilisStriped Webworm, Striped Sodworm, Changeable Grass-Veneer
Hesperia leonardusLeonard's Skipper, Blazing Star Skipper, Pawnee Prairie Skipper, Pawnee Montane Skipper
Hylephila phyleusFiery Skipper
Lacinipolia meditataThe Thinker
Lerodea eufalaEufala Skipper, Gray Skipper, Rice Leafroller
Leucania phragmitidicolaNeedle Wainscot, Phragmites Wainscot
Leucania subpunctataWhite-Dotted Wainscot, Forage Armyworm
Lon hobomokHobomok Skipper
Lon zabulonZabulon Skipper
Macrochilo litophoraAngulate Fan-Foot, Brown-Lined Owlet
Marimatha nigrofimbriaBlack-Bordered Lemon
Megisto cymelaLittle Wood Satyr
Mythimna unipunctaArmyworm Moth, White Speck
Nephelodes miniansBronzed Cutworm
Nomophila nearcticaLucerne Moth, American Celery Webworm
Orgyia leucostigmaWhite-Marked Tussock Moth
Papaipema nebrisStalk Borer
Parapediasia teterrellusBluegrass Webworm
Pediasia trisectaSod Webworm Moth, Larger Sod Webworm
Phalaenostola larentioidesBlack-Banded Owlet, Black-Banded Phalaenostola
Polites themistoclesTawny-Edged Skipper
Spodoptera frugiperdaFall Armyworm Moth
Gonioterma mistrella

Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)

—BeesSoutheastern regional records

—Specialist beesPollen specialists

9BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Poa

Anser caerulescensSnow Goose
Branta canadensisCanada Goose
Callipepla californicaCalifornia Quail
Lagopus leucuraWhite-tailed Ptarmigan
Meleagris gallopavoWild Turkey
Pooecetes gramineusVesper Sparrow
Spizella breweriBrewer's Sparrow
Spizella passerinaChipping Sparrow
Spizella pusillaField Sparrow

Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

Growing and identification

Plant details

Family: Poaceae
Hardiness: Zones 4a–8b
Soil pH: Acidic to neutral
Flower color: White
Growth rate: Rapid
Growth habit: Grows in clumps
Foliage color: Green
Fruit begins: Spring
Fruit ends: Summer

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope

Bloom · “Mid spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Flower color · “White” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Fruit begins · “Spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Fruit ends · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Growth habit · “Grows in clumps” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Growth rate · “Rapid” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Hardiness · “Zones 4a–8b” · NC Extension Plant Toolbox
Height · “About 3.6 inches” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Life cycle · “Annual” · NC Extension Plant Toolbox
Light · “Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
Soil · “Dry; Moist (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Soil pH · “Acidic to neutral” · NC Extension Plant Toolbox

Also known as

Poanna Grass

Conservation status

Alabama rank	SNA
Global rank	GNR
AL status	Not verified
Federal status	Not verified

Conservation source Global and federal source

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