Alocasia macrorrhizos (Giant taro)

Cultivation

Under glass, grow in an equal mix of composted bark, loam, and sand in filtered light. In growth, maintain high humidity, water freely, and feed every 2-3 weeks Water moderately in winter. Alternatively, cut back and store the rhizome in a cool, dry place over winter. Outdoors in frost-free areas, grow in moderately fertile, humus-rich, moist but well-drained, preferably neutral to acid soil in partial shade. Tolerates periodic flooding. Leaves often scorch if exposed to full sun. Strong winds may damage leaves. Do not allow to dry out.

Suggested uses

Containers/Patio, Architectural, Flower Arranging, Sub-Tropical, Low Maintenance, Indoor, Conservatory, Greenhouse

UK hardiness

H1a

USDA zones

Zone 9, Zone 10, Zone 11, Zone 12

Sunset zone

22, 23, 24, H1, H2

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Evergreen

Habit

Clump-forming, Erect

Native to

Indonesia, Philippines, Northeastern Australia

Drought tolerant

No

Flood tolerant

Yes

Toxicity

Though the rhizomes are widely cultivated as a food crop in tropical areas, they are only edible once cooked. All parts are toxic if eaten raw. Sap may irritate skin. Toxic to pets and livestock