Alocasia zebrina aka Zebra Alocasia

Alocasia zebrina is an evergreen plant from the Philippines. It belongs to the arum family, Araceae. Its native climate is wet and tropical. Gardeners grow this rhizomatous perennial for its bold leaves and striped stalks. It suits warm rooms, conservatories, and greenhouses. Chicago Botanic Garden also lists it for beds and borders.

Plants reach about 1.6–3.3 feet (0.5–1 metre) in height and width. They take two to five years to reach mature size. The plant has an upright form with glossy, dark green leaves. Each leaf has a sharp arrow shape and points upward. Bands of light and dark mark the long leaf stalks. Sources describe these bands as green or black and white. The striped stalks provide interest throughout the year. Older leaves may fall as new growth takes their place. This leaf loss can be part of normal growth.

Slim white spathes sit below the leaves, which may hide them. Chicago Botanic Garden records blooms from November through February. The foliage remains the main feature even when flowers appear. Its bold leaf shape and striped stalks suit indoor displays. Chicago also lists the plant as resistant to deer. That does not mean the plant can withstand cold outdoor conditions. It is not frost hardy and needs warmth.

Indoors, give it bright light without direct sun. Chicago recommends partial or full shade for its growing position. Use peat-free houseplant compost with perlite added to improve drainage. The RHS also lists loam with an acid or neutral pH. Keep the mix moist, but allow excess water to drain. Water well from spring through autumn, then reduce watering in winter. Feed every two to three weeks during the growing season. Provide high humidity; a tray of damp pebbles is one option. Keep temperatures above 59°F (15°C). The RHS rates it H1A, for year-round growing under glass. Chicago lists USDA zones 9–12.

This plant needs no routine pruning. Divide it in spring or summer to make new plants. Spring stem cuttings offer another means of propagation. Fresh ripe seed needs warmth of about 73°F (23°C). Watch for glasshouse red spider mites and mealybugs. The RHS reports few disease problems. All handling calls for care, since it can irritate skin and eyes. Wear gloves and other protection when working with it. It is toxic if eaten and toxic to pets. Keep it beyond the reach of children and animals.