Bertam Palm Plant Care
Eugeissona tristis Griff.
Updated · Sources · How we source care data
Eugeissona is a clustering genus of flowering plant in the palm family native to Borneo, Thailand and Malaysia. The six monoecious species provide a wide range of local uses and are commonly called bertam or wild Bornean sago.
Every 7–14 days
Full sun to partial shade
65–85°F
50–70%
At a glance
How do you care for Bertam Palm?
Water Bertam Palm 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 65–85°F (18–29°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Bertam Palm?
Bertam Palm (Eugeissona tristis) belongs to the Arecaceae family within the Eugeissona genus. Bertam Palm is native to Borneo, Thailand and Malaysia. Bertam Palm is also known as Sugar Palm.
Bertam Palm displays a tall, solitary trunk palm growth habit, reaching up to 30 ft tall with a spread of approximately 10 ft. Bertam Palm produces creamy white flowers in large clusters.
Leaf size: approximately 36 inches.
How Often Should You Water a Bertam Palm?
Eugeissona tristis 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 Bertam Palm Need?
Bertam Palm thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Bertam Palm Prefer?
Eugeissona tristis grows best at temperatures of 65–85°F. Bertam Palm 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 Bertam Palm?
Well-draining sandy soil mix with added organic matter. Good drainage is essential for Bertam Palm to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Bertam Palm?
Feed Bertam Palm 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 Bertam Palm?
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 Bertam Palm?
Bertam Palm can be propagated through seeds, division of offsets.
Is the Bertam Palm Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Bertam Palm, 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 Bertam Palm?
Bertam Palm 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 Bertam Palm Need?
Bertam Palm grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Bertam Palm is native to Borneo, Thailand and Malaysia. In cooler regions, grow Bertam Palm as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Bertam Palm 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 Eugeissona genus — compare its care with other Eugeissona species on PlantoScan.
Eugeissona is part of the Arecaceae plant family — browse all Arecaceae genera and species.
Bertam Palm 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: Eugeissona tristis Griff., family Arecaceae (first published in Calcutta J. Nat. Hist. 5: 101 (1845)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Bertam Palm, 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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