Needle spikerush Plant Care
Spartina juncea (Michx.) Willd.
Updated · Sources · How we source care data
Sporobolus pumilus, the saltmeadow cordgrass, also known as salt hay, is a species of cordgrass native to the Atlantic coast of the Americas, from Newfoundland south along the eastern United States to the Caribbean and north-eastern Mexico. It was reclassified after a taxonomic revision in 2014, but the older name, Spartina patens, may still be found in use.
Every 3–7 days
Full sun to partial shade
50–90°F
40–70%
At a glance
How do you care for Needle spikerush?
Water Needle spikerush 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 Needle spikerush Native To?
- Antigua and Barbuda
- Argentina
- Aruba
- Bahamas
- Barbados
- Belize
- Bolivia
- Brazil
- Canada
- Cayman Islands
- Chile
- Colombia
- Costa Rica
- Cuba
- Curaçao
- Dominica
- Dominican Republic
- Ecuador
- El Salvador
- French Guiana
- Grenada
- Guadeloupe
- Guatemala
- Guyana
- Haiti
- Honduras
- Jamaica
- Martinique
- Mexico
- Nicaragua
- Panama
- Paraguay
- Peru
- Puerto Rico
- Saint Kitts and Nevis
- Saint Lucia
- Saint Vincent and the Grenadines
- Suriname
- Trinidad and Tobago
- Turks and Caicos Islands
- United States
- Uruguay
- Venezuela
- Virgin Islands, British
- Virgin Islands, U.S.
What Is the Needle spikerush?
Needle spikerush (Spartina juncea) belongs to the Poaceae family within the Spartina genus. Needle spikerush is native to the Atlantic coast of the Americas, from Newfoundland south along the eastern United States to the Caribbean and north-eastern Mexico. Needle spikerush is also known as Rush-like cordgrass.
Needle spikerush displays a tall, grassy clumps growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. Needle spikerush produces feathery flower spikes in shades of green, brown, or purple.
Leaf size: approximately 12 inches.
How Often Should You Water a Needle spikerush?
Spartina juncea 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 Needle spikerush Need?
Needle spikerush thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Needle spikerush Prefer?
Spartina juncea grows best at temperatures of 50–90°F. Needle spikerush prefers humidity levels of 40–70%.
Temperature
50–90°F
Humidity
40–70%
What Soil Mix Works Best for a Needle spikerush?
Moist, fertile soil with good drainage. Good drainage is essential for Needle spikerush to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Needle spikerush?
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 Needle spikerush?
Needle spikerush can be propagated through division, seed. Similar propagation techniques also apply to smooth cordgrass plant care, which shares the same genus.
Is the Needle spikerush Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Needle spikerush, 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 Needle spikerush?
Needle spikerush 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 Needle spikerush Need?
Needle spikerush grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Needle spikerush is native to the Atlantic coast of the Americas, from Newfoundland south along the eastern United States to the Caribbean and north-eastern Mexico. In cooler regions, grow Needle spikerush as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Needle spikerush 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.
Needle spikerush 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 juncea (Michx.) Willd., family Poaceae (first published in Enum. Pl. : 81 (1809)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Needle spikerush, 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.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- 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.
Identify Plants Like the
Needle spikerush Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species