General info: Spartina alterniflora, commonly called smooth cordgrass, is a North American native perennial grass that thrives in wet salt marsh with full sun. This native grass needs little to no care and grows up to five feet tall. This species is the predominant species in tidal salt marshes. Smooth cordgrass is known as a low marsh species or a species that is consistently inundated with water.

Landscape uses: Spartina alterniflora is a very important species to tidal salt marshes. It best used for the edges closest to the water or in the water of salt marshes or creeks. This native grass also usually spreads and becomes a monoculture meadow.