Calamus thwaitesii Plant Care
Calamus thwaitesii Becc.
Updated · Sources · How we source care data
Calamus thwaitesii is a species of rattan palm in the family Arecaceae. It is native to Southwest India and Sri Lanka.
Every 7–14 days
Bright indirect light
65–85°F
50–70%
At a glance
How do you care for Calamus thwaitesii?
Water Calamus thwaitesii every 7–14 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 65–85°F (18–29°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Calamus thwaitesii?
Calamus thwaitesii (Calamus thwaitesii) belongs to the Arecaceae family within the Calamus genus. Calamus thwaitesii is native to Southwest India and Sri Lanka.
Calamus thwaitesii displays a tall climbing vine growth habit, reaching up to 10 ft tall with a spread of approximately 3 ft. Calamus thwaitesii produces small inconspicuous flowers on a large inflorescence.
Leaf size: approximately 18 inches.
How Often Should You Water a Calamus thwaitesii?
Calamus thwaitesii 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 Calamus thwaitesii Need?
Calamus thwaitesii thrives in bright indirect light. Avoid placing Calamus thwaitesii in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Calamus thwaitesii Prefer?
Calamus thwaitesii grows best at temperatures of 65–85°F. Calamus thwaitesii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–85°F
Humidity
50–70%
What Soil Mix Works Best for a Calamus thwaitesii?
Rich, well-draining soil with added organic matter like compost or peat moss. Good drainage is essential for Calamus thwaitesii to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Calamus thwaitesii?
Feed Calamus thwaitesii every 6 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 6 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 Calamus thwaitesii?
Repot every 2-3 years in 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 Calamus thwaitesii?
Calamus thwaitesii can be propagated through seeds, division of offsets. Similar propagation techniques also apply to rattan plant care, which shares the same genus.
Is the Calamus thwaitesii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Calamus thwaitesii, 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 Calamus thwaitesii?
Calamus thwaitesii is susceptible to spider mites, mealybugs, scale insects. 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 Calamus thwaitesii Need?
Calamus thwaitesii grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Calamus thwaitesii is native to Southwest India and Sri Lanka. In cooler regions, grow Calamus thwaitesii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Calamus thwaitesii 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 Calamus genus — compare its care with other Calamus species on PlantoScan.
Calamus is part of the Arecaceae plant family — browse all Arecaceae genera and species.
Calamus thwaitesii thrives in bright light and direct sun — see other bright-light plants.
More Calamus Species
Other Calamus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Calamus thwaitesii Becc., family Arecaceae (first published in Fl. Brit. India 6: 441 (1892)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Calamus thwaitesii, 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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