Giant Taro

Alocasia macrorrhizos

Common Names: Giant Taro, Upright Elephant Ear, Giant Alocasia, Ape

Local Name: Cheppankizhangu (Tamil), Arbi (Hindi), Chembu (Malayalam)

Family: Araceae

Origin: Tropical Asia and Pacific Islands

Plant Type: Perennial tropical herb with large rhizome

Average Lifespan: Many years; spreads by offsets

Growth Habit	Upright, clump-forming herb with massive leaves on tall petioles
Plant Size	2–5 meters tall; leaves up to 1.8 meters long
Leaves	Enormous, arrow-shaped, glossy dark green; held upright on long petioles; prominent veins
Flowers	Spathe and spadix inflorescence; cream-white; fragrant; rarely produced in cultivation
Root System	Large, starchy rhizome; produces offsets (pups) around base

Climate	Tropical and subtropical; warm and humid
Temperature Range	18–35°C; frost-sensitive
Soil Type	Rich, moist, well-drained soil with high organic matter
Soil pH Preference	5.5–7.0
Sun Requirement	Partial shade to bright indirect light; protect from harsh afternoon sun
Water Requirement	High; keep soil consistently moist; tolerates wet conditions
Can it Grow in Pots?	Yes, in very large containers (50+ liters)

Fertilizer Schedule	Monthly during growing season with balanced fertilizer
Recommended Organic Fertilizers	Compost, well-rotted manure, worm castings
Common Pests	Spider mites, mealybugs, aphids, taro beetle
Common Diseases	Root rot, leaf blight, taro leaf blight (Phytophthora)
Pruning Time	Remove dead or damaged leaves at base; divide clumps when overcrowded
How to Prune	Cut leaf stems at base; wear gloves — sap contains calcium oxalate crystals which irritate skin

Propagation by Cuttings	Division of offsets (pups) from base of plant; most reliable method
Propagation by Seeds	Rarely used; seeds germinate slowly

Market Uses	Ornamental garden plant, indoor statement plant, tropical landscape
Market Value (Approx.)	₹200–800 per plant depending on size

Symbolism	Sacred plant in Pacific Island cultures; rhizome is a traditional food staple in many tropical regions
Traditional Uses	Rhizome eaten after thorough cooking (raw is toxic); leaves used as natural plates; widely grown as ornamental in tropical gardens