Stiff False Hairgrass Plant Care
Catapodium rigidum (L.) C.E.Hubb.
Updated · Sources · How we source care data
Catapodium rigidum, ferngrass, is a species of annual grass in the family Poaceae, distributed around the Mediterranean and the Middle East. It has been widely introduced throughout drier parts of the world, including parts of North America, South America, South Africa, Korea, Australia, and New Zealand.
Every 7–14 days
Full sun to partial shade
50–85°F
40–70%
At a glance
How do you care for Stiff False Hairgrass?
Water Stiff False Hairgrass every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–85°F (10–29°C) and 40–70% humidity.
What Is the Stiff False Hairgrass?
Stiff False Hairgrass (Catapodium rigidum) belongs to the Poaceae family within the Catapodium genus. Stiff False Hairgrass is also known as Hard Grass.
Stiff False Hairgrass displays a low tufted grass growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Stiff False Hairgrass produces small inconspicuous flowers in spikelets.
Leaf size: approximately 6 inches.
How Often Should You Water a Stiff False Hairgrass?
Catapodium rigidum requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Stiff False Hairgrass Need?
Stiff False Hairgrass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Stiff False Hairgrass Prefer?
Catapodium rigidum grows best at temperatures of 50–85°F. Stiff False Hairgrass prefers humidity levels of 40–70%.
Temperature
50–85°F
Humidity
40–70%
What Soil Mix Works Best for a Stiff False Hairgrass?
Well-draining sandy loam with moderate fertility. Good drainage is essential for Stiff False Hairgrass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Stiff False Hairgrass?
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 Stiff False Hairgrass?
Stiff False Hairgrass can be propagated through seeds. Similar propagation techniques also apply to sea fern grass plant care, which shares the same genus.
Is the Stiff False Hairgrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Stiff False Hairgrass, 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 Stiff False Hairgrass?
Stiff False Hairgrass is susceptible to aphids, grasshoppers, cutworms. 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 Stiff False Hairgrass Need?
Stiff False Hairgrass grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Stiff False Hairgrass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Stiff False Hairgrass 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 Catapodium genus — compare its care with other Catapodium species on PlantoScan.
Catapodium is part of the Poaceae plant family — browse all Poaceae genera and species.
Stiff False Hairgrass 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: Catapodium rigidum (L.) C.E.Hubb., family Poaceae (first published in Fl. Bedfordshire : 437 (1953)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Stiff False Hairgrass, 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.
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