Coastal Spinifex Plant Care
Spinifex sericeus R.Br.
Updated · Sources · How we source care data
Spinifex sericeus, commonly known as hairy spinifex, rolling spinifex, beach spinifex or coastal spinifex, is a dioecious perennial grass.
Every 14–21 days
Full sun
65–85°F
40–60%
At a glance
How do you care for Coastal Spinifex?
Water Coastal Spinifex every 14–21 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 65–85°F (18–29°C) and 40–60% humidity.
What Is the Coastal Spinifex?
Coastal Spinifex (Spinifex sericeus) belongs to the Poaceae family within the Spinifex genus. Coastal Spinifex is also known as Beach Spinifex.
Coastal Spinifex displays a low-growing, spreading grass growth habit, reaching up to 0.5 ft tall with a spread of approximately 1.5 ft. Coastal Spinifex produces inconspicuous flowers on tall spikes.
Leaf size: approximately 6 inches.
How Often Should You Water a Coastal Spinifex?
Spinifex sericeus requires watering every 14–21 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 14–21 days
Let soil partially dry between waterings
What Light Does the Coastal Spinifex Need?
Coastal Spinifex thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Coastal Spinifex Prefer?
Spinifex sericeus grows best at temperatures of 65–85°F. Coastal Spinifex prefers humidity levels of 40–60%.
Temperature
65–85°F
Humidity
40–60%
What Soil Mix Works Best for a Coastal Spinifex?
Sandy, well-draining soil with low fertility. Good drainage is essential for Coastal Spinifex to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Coastal Spinifex?
Repot 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 Coastal Spinifex?
Coastal Spinifex can be propagated through seeds.
Is the Coastal Spinifex Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Coastal Spinifex, 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 Coastal Spinifex?
Coastal Spinifex is susceptible to no common pests known. 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 Coastal Spinifex Need?
Coastal Spinifex grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow Coastal Spinifex as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Coastal Spinifex 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 Spinifex genus (family Poaceae) — search all Spinifex species in the plant lookup.
Coastal Spinifex 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: Spinifex sericeus R.Br., family Poaceae (first published in Prodr. Fl. Nov. Holland. : 198 (1810)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Coastal Spinifex, 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 13b, 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.
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