Photo: no rights reservedCC0 1.0via iNaturalist
Gulf cordgrass Plant Care
Spartina spartinae (Trin.) Merr.
Updated · Sources · How we source care data
This plant's most distinctive visual feature is its tall, narrow stems topped with feathery plumes. Originating from the salt marshes of North America, Spartina spartinae is highly sought after by plant collectors for its unique aesthetic and ability to tolerate salty conditions. Its striking appearance and adaptability make it a prized addition to any collection.
Every 3–7 days
Full sun to partial shade
50–90°F
40–70%
At a glance
How do you care for Gulf cordgrass?
Water Gulf cordgrass every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–90°F (10–32°C) and 40–70% humidity.
Where Is the Gulf cordgrass Native To?
What Is the Gulf cordgrass?
Gulf cordgrass (Spartina spartinae) belongs to the Poaceae family within the Spartina genus. Gulf cordgrass is native to the Americas. Gulf cordgrass is also known as Big cordgrass, Poverty grass.
Gulf cordgrass displays a tall, grassy clumps growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. Gulf cordgrass produces feathery flower spikes in shades of green, brown, or purple.
Leaf size: approximately 12 inches.
How Often Should You Water a Gulf cordgrass?
Spartina spartinae requires watering every 3–7 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 3–7 days
Let soil partially dry between waterings
What Light Does the Gulf cordgrass Need?
Gulf cordgrass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Gulf cordgrass Prefer?
Spartina spartinae grows best at temperatures of 50–90°F. Gulf cordgrass prefers humidity levels of 40–70%.
Temperature
50–90°F
Humidity
40–70%
What Soil Mix Works Best for a Gulf cordgrass?
Moist, fertile soil with good drainage. Good drainage is essential for Gulf cordgrass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Gulf cordgrass?
Divide clumps every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Gulf cordgrass?
Gulf cordgrass can be propagated through division, seed. Similar propagation techniques also apply to smooth cordgrass plant care, which shares the same genus.
Is the Gulf cordgrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Gulf cordgrass, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Gulf cordgrass?
Gulf cordgrass is susceptible to aphids, grasshoppers, caterpillars. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Gulf cordgrass Need?
Gulf cordgrass grows outdoors in USDA Zone 8a – 11b. It survives winters down to planting zone 8a. Gulf cordgrass is native to the Americas.
Hardiness Zone
Zone 8a – 11b
Keep exploring plants
Gulf cordgrass is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Spartina genus — compare its care with other Spartina species on PlantoScan.
Spartina is part of the Poaceae plant family — browse all Poaceae genera and species.
Gulf cordgrass thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Spartina spartinae (Trin.) Merr., family Poaceae (first published in Bull. Bur. Pl. Industr. U.S.D.A. 9: 11 1902) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Gulf cordgrass, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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