Spartina alterniflora
smooth cordgrass

Characteristics

Descriptions

Light Requirements

sun

Soil Moisture

wet

Soil Description

rich, average, loam, clay, sand

Height

4'-7'

Hardiness Zone

4, 5, 6, 7, 8, 9, 10

More Filters

food for birds, colonizing, fall interest, ornamental foliage, salt tolerant

Description

Spartina alterniflora is a tall, robust salt water marsh grass. Plants commonly grow to 7', sometimes taller. Foliage is deep green with silvery undersides giving it a characteristic sheen when blowing in the sunlight. Flowers appear on 4" to 12" spikes in summer. This grass will form large colonies parallel to the shoreline, the depth of which will vary according to the shoreline's profile.

Cultivation

Spartina alterniflora is the dominant grass species found in coastal wetlands and along tidal shorelines of the eastern US. It thrives in mucky soil in full sun. Exposure to salt water is not a requirement for this species, but it will help produce healthier and longer living colonies. Smooth cordgrass spreads rapidly by rhizomatous roots. These are an important food source for waterfowl and muskrats. This sturdy cordgrass is ideal for wetland restoration and erosion prevention. Its dense vegetation traps nutrients and sediments, reclaiming land lost to erosion. Zones 4-10

Additional Notes

Spartina alterniflora is an important species to the ecology of the coastal areas of the eastern US, it is however considered an invasive species in other areas of the world where it has been introduced. This includes the States of California, Washington, and Oregon where it is classified as a noxious, invasive weed and has become a threat to local ecosystems. This species should not be planted outside its native range. For additional weed information, please consult the USDA website.
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Pricing & Availability

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$25 off orders of $500 or more
$50 off orders of $750 or more
$100 off orders of $1,000 or more
$300 off orders of $2,000 or more
15% off orders of $3,000 or more

Would you like your plants shipped later? You may choose to do so in the shopping cart.

Note: Early spring shipments might include plants that have not yet broken dormancy, or have not been vernalized and will be frost-tender. Please use your best judgment when selecting your preferred ship week.

Did you know? When plants are available from multiple growers, we list growers closest to your location first.

Why choose plants from the nearest grower? Choosing a the grower closest to you makes it more likely the plants are consistent with your ecoregion and better adapted to your location. In addition, shipping plants shorter distances typically uses fewer resources, something we can all get behind!

Pricing & Availability

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You can also do so on any species page.

 

Izelplants
Please note, we are unable to ship to:

AZ, CA, CO, FL, ID, LA, MT, NM, NV, OR, TX, UT, WA, WY

Grouped product items
Pricing & Availability

Full Flats

Delmarva Native Plants , MD

Available:

50-count regular plugs, full flat (50 plugs)
$141.75
$2.84 per plant - Sold in full flats only

91 available

See all plugs sold by Delmarva Native Plants.

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50-Count Regular Plugs

50 count regular plug

Size
1 ⅞” x 1 ⅞” across by 2 ⅜” deep. They are referred to as 50s, or “regular 50s”.

Recommended Uses
50s are starter plugs. They are usually transplanted into larger pots and readied for resale. They can be planted directly into the landscape but will require additional care due to their small size.They are wider than 72s and are often used for species that produce fibrous roots and/or roots that spread laterally rather than downward.

Pros
Economical because they require less resources to produce. One of the cheapest purchasing options. 50s are often reserved for plants with root systems that establish quickly, ensuring a fast turnaround in the greenhouse. This can be a clue that the plants will rapidly expand their roots in the landscape as well.

Cons
They are small, young plants with little margin for error: They can be damaged in shipping, require skill to nurse in the flats or pot up. They will require more TLC than larger plants when installed directly in the landscape. They should not be used as filler plants where previously established plants will compete for available resources.

Maps, Wetland Status & More

MAP OF NATIVE RANGE

Recorded County Distribution: USDA data.

More Information

Native To

More Information
AL, CT, DE, GA, MA, MD, ME, MS, NC, NH, NJ, NY, RI, SC, VA, FL, LA, TX

Legal Status

Wetland Status

Arid WestOBL
Atlantic and Gulf Coastal PlainOBL
Eastern Mountains and PiedmontOBL
Great PlainsOBL
Northcentral and NortheastOBL
Western Mountains, Valleys, and CoastOBL

 

MAP OF WETLAND DELINEATION REGIONS

Wetland Status regions

 
Northcentral and Northeast
 
Eastern Mountains and Piedmont
 
Atlantic and Gulf Coastal Plain
 
Midwest
 
Great Plains
 
Western Mountains, Valleys, and Coast
 
Arid West

Interpreting Wetland Status

Code

Status

Designation

Comment

OBL

Obligate Wetland

Hydrophyte

Almost always occur in wetlands

FACW

Facultative Wetland

Hydrophyte

Usually occur in wetlands, but may occur in non-wetlands

FAC

Facultative

Hydrophyte

Occur in wetlands and non-wetlands

FACU

Facultative Upland

Nonhydrophyte

Usually occur in non-wetlands, but may occur in wetlands

UPL

Obligate Upland

Nonhydrophyte

Almost never occur in wetlands

Classification

KingdomPlantaePlants
SubkingdomTracheobiontaVascular plants
SuperdivisionSpermatophytaSeed plants
DivisionMagnoliophytaFlowering plants
ClassLiliopsidaDicotyledons
SubclassCommelinidae
OrderCyperales
FamilyPoaceaeGrass family
GenusSpartinacordgrass
SpeciesSpartina alterniflorasmooth cordgrass

ADDITIONAL COMMON NAMES:

saltmarsh cordgrass, oystergrass, saltwater cordgrass, Atlantic cordgrass

Plant Sizes

Sizes Sizes

Sizes info

Shipping & Planting

SHIPPING INFO:

Shipping is free on all plants orders!

Your plants will ship using each grower’s preferred method: FedEx Ground, UPS Ground, or Spee-Dee Ground (in select midwestern states). Our growers ship orders Monday through Wednesday. The farther your plants need to travel, the earlier in the week they will ship. The goal is to have all plants delivered by the end of the week.

 

Shipping plugs:

Plugs are shipped in full flats, sometimes also referred to as trays. Multiple flats can be shipped in a single box. The flats are wrapped in netting or craft paper to secure the plants, and spacers are used between flats to keep the plants from being crushed.

When you unpack your plugs, the plants will have been somewhat flattened by the netting or craft paper. They will straighten out within a couple of days. You may also gently “fluff” them a bit to speed up the process. In some cases, your plants might have been cut back before packing, if the grower deemed them to have become too tall for safe packaging. Don’t worry, though, these guys know what they’re doing and would not compromise the health of the plants. They’ll fill back in in no time.

After receiving your plants’ journey in a dark box, it will be important to acclimate them to sunlight again. Over a couple of days, you should gradually move them into their preferred light exposure, and water them as per their requirement.

Although we always recommend putting your plants in the ground as soon as possible, they can stay healthy in the flats for a considerable amount of time. The key is to respect their growing requirements: if the species requires full sun, do not store them in the shade. If it is best adapted to dry soil, do not over-water.

PLANTING INFO:

Planting plugs:

We consider plugs ready to ship when the plants’ roots have filled the entire liner cell and the plants can easily be pulled out. In some cases you will have to go about it gently, wiggling the plant by the crown, and possibly squeezing the bottom of the liner to compress the growing medium and release the roots. Other times, the plants will appear to be root bound. They are not in the traditional sense. The plants are healthy but they have used up all the growing medium available to them. Plugs are at an aggressive stage of growth. As soon as planted the roots will immediately expand into your native soil. They establish faster than plants in larger containers, because they don’t have the luxury of a lot of growing media that can inhibit the roots from venturing outside of their comfort zone.

We are not going to address area preparation because the process can be complex and is always site-specific. However, as a rule, we recommend disturbing the soil as little as possible, and we do not recommend amending the soil. If you chose the right plant for the right conditions they will thrive. Any disturbance and amendments will only encourage weeds to emerge that never had a chance to do so before.

Installing plugs cannot be easier: dig a hole large enough for the roots to fit snugly inside, then water them in to eliminate air gaps. We recommend using a soil knife, sometimes referred to as hori hori, or a drill-adapted auger if it’s a large installation. If you use an auger, you will need a powerful drill. Depending on the size of the project and the type of soil, the process can be beyond what an average drill will bear. Mulching is recommended after installation to help keep weeds down while the plants establish. Be sure to keep it away from the crown of the plants. For large projects, you may want to mulch the area before planting, rather than tiptoeing through it after the fact. As a side note: if you are installing plugs in the fall, you might want to plant them so that the crown is about ¾” lower than the surrounding soil. The winter’s freeze/thaw cycles can push plugs out if the roots did not have enough time to establish and anchor them in.