Alocasia puncakborneensis is part of the Araceae family and its native range is Borneo (Sarawak) where it grows primarily in the wet tropical biome. It is part of the Alocasia Princeps Complex and was first described in 2020 by Wong Sin Yeng and Peter C.Boyce; it has “brilliant green leaf blades with the tertiary veins forming a prominently raised fine reticulum on the adaxial surface.”
Genus name comes from the Greek ‘a’ meaning without and ‘locasia’ meaning lotus root. The specific epithet is from the locality plus the suffix ‘-ensis’ which indicates ‘from’ Puncak, this is a summit of a mountain in the Malay language (pronounced pun-chak, with emphasis on the second syllable).
Light: Bright indirect light; strong, direct sunlight could harm its leaves, potentially causing burns, while insufficient light may result in slower growt. A position near a window with filtered light in a typical UK home is ideal.
Water: The potting mix should be kept consistently damp but not saturated. Allow the upper inch or two of the soil to dry between waterings. Ensure the pot drains exceptionally well to prevent root problems, which can be an issue, especially in the UK's climate. Reduce watering in autumn and winter when the plant's growth naturally slows or it enters dormancy.
Soil: An airy potting mix that drains well is essential. A mix specifically created for aroids, incorporating materials such as coco coir, perlite, and orchid bark, is often recommended to provide the necessary air circulation and drainage.
Fertilising: Use a diluted liquid fertiliser every two to four weeks during the active growing period in spring and summer. Reduce or stop fertilising during the autumn and winter months.
Temperature: This plant prefers warm temperatures, ideally between 18°C and 27°C. It should be shielded from cold draughts and sudden temperature changes, which can occur indoors, particularly during colder UK months. Temperatures below 15°C may trigger dormancy.
Humidity: Higher humidity levels are highly beneficial for Alocasia Puncakborneensis, ideally above 60%. Consider using a humidifier or placing the plant on a pebble tray with water to maintain optimal conditions, particularly during drier indoor periods in the UK.
Growth Habit: This Alocasia has an upright, clumping growth habit, with new leaves emerging from a central rhizome or corm. It typically remains a manageable size for display on shelves or tabletops.
Toxicity: Like all Alocasias, this plant is toxic if consumed by humans or pets.