Alocasia 'Black Zebrina' is a striking and highly sought-after aroid, prized for its dramatic dark leaves and unique striped stems. This cultivar features large, glossy, arrow-shaped leaves that can range from deep green to almost black, held aloft on elegant petioles with a distinct zebra-like pattern of black or dark brown stripes. Its bold combination of colour and pattern makes it a captivating addition to indoor plant collections. It is a member of the Araceae family.
The genus name Alocasia comes from Greek words, indicating a distinction from the taro plant. 'Black Zebrina' is a cultivar name that aptly describes the plant's black leaves and the zebra-stripe pattern on its stems.
Light: Alocasia 'Black Zebrina' thrives in bright, indirect light. Strong, direct sunlight can harm its leaves, potentially causing scorching. Insufficient light may result in slower growth and less prominent stripes. A spot 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 (65°F and 80°F). It should be shielded from cold draughts and sudden temperature changes, which can occur indoors, particularly during colder UK months. Temperatures below 15°C (59°F) may trigger dormancy.
Humidity: Higher humidity levels are highly beneficial for Alocasia 'Black Zebrina', ideally above 60%. Consider using a humidifier or placing the plant on a pebble tray with water to maintain optimal conditions, especially during drier indoor periods.
Growth Habit: This Alocasia has an upright, clumping growth habit, with new leaves emerging from a central rhizome. It can grow to a significant size indoors, making it a prominent feature.
Toxicity: Like all Alocasias, this plant is toxic if consumed by humans or pets.