Switchgrass
Panicum virgatum
49
Good
Native to Louisiana (estimated). How scores work Is it native here?
Profile 100%
- Height
- 3–7 feet
- Spread
- 2–3 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist
Space about 2.5 ft apart from its recorded spread, about 16 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
At a glance
- Life cycle
- Perennial
- Leaves
- Deciduous
- Bloom
- Mid summer
- Fruiting season
- Fall
Recorded in 39 Louisiana parishes.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 192 animals.
- Black-crowned Night-heronNycticorax nycticorax
- Chimney SwiftChaetura pelagica
- Common NighthawkChordeiles minor
- Cooper's HawkAccipiter cooperii
- Eastern KingbirdTyrannus tyrannus
- Great Horned OwlBubo virginianus
- Prairie WarblerDendroica discolor
- Red-tailed HawkButeo jamaicensis
- Red-winged BlackbirdAgelaius phoeniceus
- Sharp-shinned HawkAccipiter striatus
- Turkey VultureCathartes aura
- Yellow-breasted ChatIcteria virens
- American KestrelFalco sparverius
- American RobinTurdus migratorius
- Chipping SparrowSpizella passerina
- Common YellowthroatGeothlypis trichas
- Eurasian Collared-doveStreptopelia decaocto
- Great-tailed GrackleQuiscalus mexicanus
- Mourning DoveZenaida macroura
- Northern BobwhiteColinus virginianus
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
- Pine SiskinCarduelis pinus
- Wild TurkeyMeleagris gallopavo
Ecological relationships
Who uses this plant?
22CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Panicum
- Anatrytone loganDelaware Skipper, Logan Skipper, Black-Vein Skipper
- Ancyloxypha numitorLeast Skipper
- Dargida diffusaWheat Head Armywotm Moth
- Dargida rubripennisThe Pink-Streak
- Hesperia attalusDotted Skipper
- Hesperia leonardusLeonard's Skipper, Blazing Star Skipper, Pawnee Prairie Skipper, Pawnee Montane Skipper
- Hylephila phyleusFiery Skipper
- Hypena scabraGreen Cloverworm Bomolocha, Black Snout
- Lerema acciusClouded Skipper, Corn Leaf tier
- Leucania adjutaAdjutant Wainscot
Show all 22
- Leucania linitaReed Wainscot, Linen Wainscot
- Marimatha nigrofimbriaBlack-Bordered Lemon
- Mocis latipesSmall Mocis, Striped Grass Looper
- Mocis texanaTexas Mocis
- Mythimna unipunctaArmyworm Moth, White Speck
- Panoquina ocolaOcola Skipper, Long-Winged Skiiper
- Papaipema nebrisStalk Borer
- Poanes viatorBroad-Winged Skipper
- Polites egeremetNorthern Broken-Dash
- Polites themistoclesTawny-Edged Skipper
- Spodoptera frugiperdaFall Armyworm Moth
- Idioglossa miraculosa
0BeesSoutheastern regional records
0Specialist beesPollen specialists
35BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Panicum
- Acanthis flammeaCommon Redpoll
- Agelaius phoeniceusRed-winged Blackbird
- Aix sponsaWood Duck
- Anas creccaGreen-winged Teal
- Anthus rubescensAmerican Pipit
- Anthus spragueiiSprague's Pipit
- Aythya collarisRing-necked Duck
- Calcarius lapponicusLapland Longspur
- Calcarius ornatusChestnut-collared Longspur
- Calcarius pictusSmith's Longspur
Show all 35
- Callipepla gambeliiGambel's Quail
- Colinus virginianusNorthern Bobwhite
- Columbina passerinaCommon Ground Dove
- Contopus virensEastern Wood-Pewee
- Cyrtonyx montezumaeMontezuma Quail
- Dendrocygna bicolorFulvous Whistling-Duck
- Dolichonyx oryzivorusBobolink
- Fulica americanaAmerican Coot
- Gallinula galeataCommon Gallinule
- Junco hyemalisDark-eyed Junco
- Mareca streperaGadwall
- Meleagris gallopavoWild Turkey
- Molothrus aterBrown-headed Cowbird
- Passer domesticusHouse Sparrow
- Peucaea aestivalisBachman's Sparrow
- Plectrophenax nivalisSnow Bunting
- Pooecetes gramineusVesper Sparrow
- Porzana carolinaSora
- Quiscalus quisculaCommon Grackle
- Sialia sialisEastern Bluebird
- Spizella passerinaChipping Sparrow
- Spizella pusillaField Sparrow
- Turdus migratoriusAmerican Robin
- Xanthocephalus xanthocephalusYellow-headed Blackbird
- Zenaida macrouraMourning Dove
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
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Growing and identification
Plant details
- Family
- Poaceae
- Hardiness
- Zones 5a–9b
- Flower color
- Yellow, pink, purple or red
- Growth rate
- Rapid
- Growth habit
- Spreads by rhizomes
- Foliage color
- Green
- Fruit begins
- Fall
- Fruit ends
- Fall
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 summer” · USDA PLANTS (ranked first; Prairie Moon 2026 Cultural Guide differs) · Nationwide species characteristics; local growing conditions may vary
- Flower color · “Yellow, pink, purple or red” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
- Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit begins · “Fall” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs) · Species profile fruit display season; not a local ripening date
- Fruit ends · “Fall” · NC Extension Plant Toolbox · Species profile fruit display season; not a local ripening date
- Growth habit · “Spreads by rhizomes” · 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 5a–9b” · NC Extension Plant Toolbox
- Height · “3–7 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, USDA PLANTS, Prairie Moon 2026 Cultural Guide differ)
- Leaves · “Deciduous” · NC Extension Plant Toolbox
- 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 (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Prairie Moon 2026 Cultural Guide differ)
- Soil · “Moist; Occasionally dry; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Prairie Moon 2026 Cultural Guide differ)
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Also known as
Switch Grass
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5 |
| LA status | Not verified |
| Federal status | Not verified |
In your garden
Will it fit your yard?
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Choose a county to begin.
Growing cautions
- Spreads by rhizomes. Spreads steadily into colonies by both rhizomes and re-seeding. Tennessee Smart Yards
For planning only; these do not change the score or Fit.
Sources
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- 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