Giant Rattan Plant Care
Calamus ingens (J.Dransf.) W.J.Baker
Updated · Sources · How we source care data
Calamus ingens is a species of plant with a rosette growth form in the palm family Arecaceae. It is endemic to Mulu National Park, in Sarawak, Borneo.
Every 7–14 days
Bright indirect light
65–85°F
50–70%
At a glance
How do you care for Giant Rattan?
Water Giant Rattan 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 Giant Rattan?
Giant Rattan (Calamus ingens) belongs to the Arecaceae family within the Calamus genus. Giant Rattan is native to Mulu National Park, in Sarawak, Borneo.
Giant Rattan displays a tall climbing vine growth habit, reaching up to 10 ft tall with a spread of approximately 3 ft. Giant Rattan produces small inconspicuous flowers on a large inflorescence.
Leaf size: approximately 18 inches.
How Often Should You Water a Giant Rattan?
Calamus ingens 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 Giant Rattan Need?
Giant Rattan thrives in bright indirect light. Avoid placing Giant Rattan in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Giant Rattan Prefer?
Calamus ingens grows best at temperatures of 65–85°F. Giant Rattan 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 Giant Rattan?
Rich, well-draining soil with added organic matter like compost or peat moss. Good drainage is essential for Giant Rattan to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Giant Rattan?
Feed Giant Rattan 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 Giant Rattan?
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 Giant Rattan?
Giant Rattan can be propagated through seeds, division of offsets. Similar propagation techniques also apply to rattan plant care, which shares the same genus.
Is the Giant Rattan Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Giant Rattan, 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 Giant Rattan?
Giant Rattan 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 Giant Rattan Need?
Giant Rattan grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Giant Rattan is native to Mulu National Park, in Sarawak, Borneo. In cooler regions, grow Giant Rattan as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Giant Rattan 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.
Giant Rattan 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 ingens (J.Dransf.) W.J.Baker, family Arecaceae (first published in Phytotaxa 197(2): 144 (2015)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Giant Rattan, 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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