Kentucky Bluegrass
Poa pratensis
-30
Harmful
Native to Louisiana (estimated). How scores work Is it native here?
Profile 76%
- Height
- 4–24 inches
- Spread
- 6 inches
- Light
- Full sun, Partial shade
- Soil moisture
- Usually moist
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Do not plant. Listed invasive in Louisiana.
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At a glance
- Life cycle
- Perennial
- Bloom
- Mid spring
- Fruiting season
- Spring to summer
Not yet recorded · Leaves
Recorded in 19 Louisiana parishes.
Ecological relationships
Who uses this plant?
32CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · 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 32
- 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 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
—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
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 3a–7b
- Soil pH
- Neutral to alkaline
- Flower color
- Gray/silver, green or purple
- Growth rate
- Moderate
- Growth habit
- Spreads by rhizomes
- Foliage color
- Green
- Fruit begins
- Spring
- Fruit ends
- Summer
What its natural habitat tells you
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 · “Gray/silver, green or purple” · 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 · “Spreads by rhizomes” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Hardiness · “Zones 3a–7b” · NC Extension Plant Toolbox
- Height · “4–24 inches” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
- Soil · “Moist” · NC Extension Plant Toolbox
- Soil pH · “Neutral to alkaline” · NC Extension Plant Toolbox
- Spread · “6 inches” · NC Extension Plant Toolbox
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5 |
| LA status | Not verified |
| Federal status | Not verified |
Sources
- USDA PLANTS
- Louisiana occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications