Spartina alterniflora- Saltmarsh Cordgrass

Spartina alterniflora- Saltmarsh Cordgrass

SKU 72338 Category

The dominant grass in coastal plains of eastern North America, Saltmarsh Cordgrass grows 3 to 8 feet tall in moist, sandy coastal regions that are brackish to very salty. Its leaves are green with silvery white undersides. Flowers are 4 to 12 inch spikes appearing late summer through fall, with seeds ripening soon after. Roots are deep and fibrous, with rhizomatous colonization.

A great plant for wildlife gardens in coastal areas of eastern North America, Saltmarsh Cordgrass requires full sun, moist to wet, preferably sandy soil, and lots of room, as it tends to form thick mats over time.

Price range: $14.99 through $179.99

Please note: Most pictures represent mature plants. Unless otherwise specified, all of our plants are sold in 4″ pots to make shipping possible and will mature in time.

Learn more about how the process works and how our plants are delivered.

Additional information

Native

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Wetland Indicator

Sunlight

Special Attributes

Moisture

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Bloom Period

April to May

Size

1 Quart, Full Flat (50) 2" Plugs

Product Description

Spartina alterniflora, commonly known as Smooth Cordgrass, is a hardy native perennial grass prized for its exceptional salt tolerance, upright growth habit, and critical role in coastal wetland ecosystems. Native to the Atlantic and Gulf coasts of North America, this resilient warm-season grass is an excellent choice for salt marsh restoration, coastal landscapes, shoreline stabilization, erosion control, wetland restoration, and naturalized plantings.

Throughout the growing season, Spartina alterniflora forms dense stands of upright green foliage that provide valuable structure and habitat in coastal environments. In summer, narrow flowering stems rise above the foliage and produce small, inconspicuous flower clusters that develop into seeds. The dense vegetation provides shelter and habitat for birds, fish, crabs, insects, and other coastal wildlife.

Smooth Cordgrass performs best in full sun and thrives in saturated, saline soils that experience regular tidal flooding. Its extensive underground rhizome system allows it to spread and form dense colonies, making it highly effective for shoreline stabilization, erosion control, sediment trapping, and coastal wetland restoration. It is exceptionally tolerant of saltwater, fluctuating water levels, and challenging coastal conditions.

With its strong root system, salt tolerance, spreading growth habit, and exceptional ecological importance, Spartina alterniflora is an outstanding native coastal grass for restoration professionals, conservation projects, and landscapes seeking to protect shorelines, stabilize sediment, and support healthy salt marsh ecosystems.

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