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PlantSnap
Plant Care
Giant taro
(Alocasia macrorrhiza)
Also Known As
Giant taro, Elephant ear, Giant elephant ear
About This Plant
Alocasia macrorrhiza is a tropical plant species that belongs to the Araceae family. It is commonly known as Giant Taro or Elephant's Ear due to the large size of its leaves. The plant is native to Southeast Asia and is widely cultivated as an ornamental plant worldwide. It can grow up to 10 feet (3 meters) tall and has large, arrow-shaped leaves that can reach up to 4 feet (1.2 meters) long.
Plant Care Instructions
Outdoor Size Range
72-120 inches (183-305 cm)
Light Requirements
Alocasia macrorrhiza prefers bright, indirect light, but can tolerate some shade. Direct sunlight can burn the leaves.
Humidity Needs
High humidity is essential for Alocasia macrorrhiza to thrive. Mist the leaves regularly or place a humidifier nearby.
Fertilizing Schedule
Fertilize every 2-3 weeks during the growing season with a balanced, water-soluble fertilizer. Reduce fertilizer in winter.
Pruning Guidelines
Remove any yellow or damaged leaves as soon as possible to prevent the spread of disease. Prune the plant in spring to control its size.
Common Pests and Diseases
Alocasia macrorrhiza is susceptible to spider mites, mealybugs, and scale insects. Treat infestations with insecticidal soap or neem oil.
Indoor Size Range
36-48 inches (91-122 cm)
Watering Schedule
The plant requires consistently moist soil, but not waterlogged. Water when the top inch of soil feels dry to the touch. Reduce watering in winter.
Temperature Range
The plant prefers temperatures between 60-85°F (16-29°C). Avoid temperatures below 55°F (13°C).
Growing Season
Alocasia macrorrhiza grows best in spring and summer when temperatures are warm and days are long.
Growing Difficulty Level
Alocasia macrorrhiza is considered moderately difficult to grow. It requires high humidity, consistent watering, and bright, indirect light. It is susceptible to pests and diseases if not cared for properly.
USDA Hardiness Zones
Alocasia macrorrhiza is hardy in USDA zones 8-11.
Did You Know?
The Giant Taro is a staple food crop in many parts of the world, particularly in Southeast Asia, where it is grown for its edible corms and leaves.
