Saltmarsh Cordgrass
Spartina alterniflora
Native to Louisiana (estimated). How scores work Is it native here?
Profile 94%
- Height
- About 3.5 feet
- Light
- 4 or more hours of direct sun
- Soil moisture
- Moist to wet
No photograph yet. Looking for an old drawing…
At a glance
- Bloom
- Late spring
- Fruiting season
- Spring to summer
Not yet recorded · Spread · Life cycle · Leaves
Recorded in 13 Louisiana parishes.
Who uses this plant?
17CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Spartina
- Aethalura intertextaFour-Barred Gray
- Ancyloxypha numitorLeast Skipper
- Apantesis phalerataHarnessed Moth
- Doryodes bistrialisDouble-Lined Doryodes
- Ectropis crepusculariaThe Small Engrailed, Saddleback Looper
- Leucania linitaReed Wainscot, Linen Wainscot
- Leucanopsis longaLong-Streaked Tussock Moth
- Mocis texanaTexas Mocis
- Nola cereellaSorghum Cutworm, Sorghum Webworm Moth, Sorgham Webworm Moth
- Panoquina panoquinSalt Marsh Skipper
Show all 17
- Papaipema nebrisStalk Borer
- Poanes aaroniAaron's Skipper
- Automeris louisiana
- Blastobasis graminea
- Chilo demotella
- Chilo plejadellus
- Photedes enervata
0BeesSoutheastern regional records
0Specialist beesPollen specialists
1BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Spartina
- Anser caerulescensSnow Goose
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
Plant details
- Family
- Poaceae
- Flower color
- Yellow
- Growth rate
- Moderate
- Growth habit
- Grows in clumps
- 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 · “Late spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Flower color · “Yellow” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- 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 · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Height · “About 3.5 feet” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
Also known as
Sporobolus alterniflorus
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5 |
| LA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- 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