Rugose Beak-rush Plant Care
Rhynchospora rugosa (Vahl) Gale
Updated · Sources · How we source care data
Rhynchospora rugosa, known by the common name of claybank beaksedge, is a member of the sedge family, Cyperaceae. It is a perennial herb, native to Central and South America.
Every 3–7 days
Partial to full sun
60–80°F
50–70%
At a glance
How do you care for Rugose Beak-rush?
Water Rugose Beak-rush every 3–7 days, letting the top layer of soil dry out between waterings, and give it partial to full sun. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 8 months during the growing season.
Where Is the Rugose Beak-rush Native To?
What Is the Rugose Beak-rush?
Rugose Beak-rush (Rhynchospora rugosa) belongs to the Cyperaceae family within the Rhynchospora genus. Rugose Beak-rush is native to Central and South America. Rugose Beak-rush is also known as Wrinkled Beak-rush.
Rugose Beak-rush displays a grass-like perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 0.5 ft. Rugose Beak-rush produces small inconspicuous flowers in terminal clusters.
Leaf size: approximately 12 inches.
How Often Should You Water a Rugose Beak-rush?
Rhynchospora rugosa 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 Rugose Beak-rush Need?
Rugose Beak-rush thrives in partial to full sun.
Light Requirement
Partial to full sun
What Temperature and Humidity Does the Rugose Beak-rush Prefer?
Rhynchospora rugosa grows best at temperatures of 60–80°F. Rugose Beak-rush prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Rugose Beak-rush?
Moist, acidic soil with high organic matter content. Good drainage is essential for Rugose Beak-rush to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Rugose Beak-rush?
Feed Rugose Beak-rush every 8 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 8 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Rugose Beak-rush?
Repot every 1-2 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 Rugose Beak-rush?
Rugose Beak-rush can be propagated through seed, division. Similar propagation techniques also apply to short-beaked beakrush plant care, which shares the same genus.
Is the Rugose Beak-rush Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Rugose Beak-rush, 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 Rugose Beak-rush?
Rugose Beak-rush 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 Rugose Beak-rush Need?
Rugose Beak-rush grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Rugose Beak-rush is native to Central and South America. In cooler regions, grow Rugose Beak-rush as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Rugose Beak-rush 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 Rhynchospora genus — compare its care with other Rhynchospora species on PlantoScan.
Rhynchospora is part of the Cyperaceae plant family — browse all Cyperaceae genera and species.
Rugose Beak-rush thrives in bright light and direct sun — see other bright-light plants.
More Rhynchospora Species
Other Rhynchospora species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Rhynchospora rugosa (Vahl) Gale, family Cyperaceae (first published in Rhodora 46: 275 (1944)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Rugose Beak-rush, 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 13a, 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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