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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.Alocasia triangularis is a rare and unusual species of Alocasia native to Borneo and neighbouring regions of Southeast Asia. Like many members of the Araceae family, it is admired for its bold and distinctive foliage, but what sets this species apart is its unusual triangular leaf shape, from which it takes its name.
The leaves are thick, leathery, and distinctly triangular with pointed tips, unlike the more rounded or arrow-shaped forms of many Alocasia. The upper surfaces are a glossy deep green, strongly veined in lighter green, while the undersides often carry paler tones or hints of purple depending on maturity and growing conditions. Each leaf is held aloft on strong, upright petioles that emerge from a central rhizome, creating a striking architectural form.
Typically reaching 6090 cm tall indoors, Alocasia triangularis has an elegant yet dramatic presence. It is prized among collectors for its rarity, sculptural habit, and geometric foliage that makes it instantly recognisable in any Alocasia collection.
Thrives in bright, indirect light. Tolerates medium light but prefers strong filtered light to maintain leaf vibrancy. Avoid harsh direct sun, which may scorch the leaves.
Keep the soil lightly moist during the growing season, watering when the top 23 cm has dried. Never allow the plant to sit in water, as its rhizomes are prone to rot. In winter, reduce watering as growth slows or dormancy begins.
Temperature: Prefers 1828C. Protect from draughts and avoid prolonged cold below 15C.
Humidity: Requires high humidity (60%+). Mist lightly, use a humidifier, or group with other tropical plants to maintain consistent levels.
Use a chunky, free-draining aroid mix peat-free compost with orchid bark, perlite, and coco coir is ideal. Repot every 12 years in spring to refresh the mix and encourage healthy root growth.
Feed every 23 weeks during spring and summer with a diluted, balanced fertiliser. Stop feeding in autumn and winter.
Remove old or damaged leaves at the base to maintain the plants appearance. Wipe foliage regularly with a damp cloth to enhance its glossy finish.
Moderate grower, typically reaching 6090 cm indoors. Like many Alocasia, it may enter dormancy in cooler months, with leaves dying back this is normal. Reduce watering during this period and resume regular care in spring when new growth emerges.
Yellowing leaves: Usually linked to overwatering.
Crispy edges: Caused by low humidity or underwatering.
Drooping leaves: Can indicate shock from environmental changes or insufficient light.
Pests: May be affected by spider mites, thrips, or mealybugs.
Alocasia triangularis is a lesser-known but highly desirable species among serious collectors. Its unique triangular foliage gives it a bold, geometric quality that distinguishes it from other jewel Alocasias. A living piece of botanical art, it brings an exotic, sculptural element to interiors and tropical plant collections.
Quick Care Summary
Light: Bright, indirect; avoid harsh sun
Water: Lightly moist; reduce in dormancy
Temperature: 1828C; avoid below 15C
Humidity: High (60%+ recommended)
Soil: Chunky, free-draining aroid mix
Feed: Every 23 weeks in spring/summer
Growth: Upright clump, 6090 cm; glossy triangular leaves with bold veining
