Hawaiian sugar cane Plant Care
Saccharum robustum Brandes & Jesw. ex Grassl
Updated · Sources · How we source care data
This plant's elongated fronds with dark green, leathery leaves make it stand out in any collection. Hailing from the tropical regions of Southeast Asia, Saccharum robustum attracts plant collectors for its unique appearance and ability to thrive in humid environments, making it a stunning addition to any indoor jungle.
Every 3–5 days
Full sun
65–85°F
40–70%
At a glance
How do you care for Hawaiian sugar cane?
Water Hawaiian sugar cane every 3–5 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 65–85°F (18–29°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Hawaiian sugar cane Native To?
What Is the Hawaiian sugar cane?
Hawaiian sugar cane (Saccharum robustum) belongs to the Poaceae family within the Saccharum genus. Hawaiian sugar cane is native to New Guinea. Hawaiian sugar cane is also known as robust sugarcane.
Hawaiian sugar cane displays a tall, clumping grass growth habit, reaching up to 8 ft tall with a spread of approximately 2 ft. Hawaiian sugar cane produces tall feathery plumes in shades of white, pink, or purple.
Leaf size: approximately 36 inches.
How Often Should You Water a Hawaiian sugar cane?
Saccharum robustum requires watering every 3–5 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 3–5 days
Let soil partially dry between waterings
What Light Does the Hawaiian sugar cane Need?
Hawaiian sugar cane thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Hawaiian sugar cane Prefer?
Saccharum robustum grows best at temperatures of 65–85°F. Hawaiian sugar cane prefers humidity levels of 40–70%.
Temperature
65–85°F
Humidity
40–70%
What Soil Mix Works Best for a Hawaiian sugar cane?
Rich, well-draining loamy soil with plenty of organic matter. Good drainage is essential for Hawaiian sugar cane to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Hawaiian sugar cane?
Feed Hawaiian sugar cane 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 Hawaiian sugar cane?
Divide and 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 Hawaiian sugar cane?
Hawaiian sugar cane can be propagated through division of rhizomes. Similar propagation techniques also apply to narrowleaf cane plant care, which shares the same genus.
Is the Hawaiian sugar cane Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Hawaiian sugar cane, 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 Hawaiian sugar cane?
Hawaiian sugar cane 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 Hawaiian sugar cane Need?
Hawaiian sugar cane grows outdoors in USDA Zone 10b – 12b. It survives winters down to planting zone 10b. Hawaiian sugar cane is native to New Guinea. In cooler regions, grow Hawaiian sugar cane as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 12b
Keep exploring plants
Hawaiian sugar cane 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 Saccharum genus — compare its care with other Saccharum species on PlantoScan.
Saccharum is part of the Poaceae plant family — browse all Poaceae genera and species.
Hawaiian sugar cane thrives in bright light and direct sun — see other bright-light plants.
More Saccharum Species
Other Saccharum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Saccharum robustum Brandes & Jesw. ex Grassl, family Poaceae (first published in J. Arnold Arbor. 27: 234 (1946)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Hawaiian sugar cane, 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 10b – 12b, estimated from the plant's typical growing conditions.
- 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.
Identify Plants Like the
Hawaiian sugar cane Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species