Alocasia macrorrhiza
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Alocasia macrorrhiza

Tier 2 Difficulty: medium Water: low Light: partial_sun Toxicity: low
Temperature
20–37 °C
Soil pH
5–6
Hardiness
Zone 9–12
Click count
38
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Description

Source: leafsnap

Alocasia macrorrhizos is a species of flowering plant in the arum family (Araceae) that it is native to rainforests of Maritime Southeast Asia, New Guinea, and Queensland and has long been cultivated in South Asia, the Philippines, many Pacific islands, and elsewhere in the tropics. Common names include giant taro, ʻape, giant alocasia, biga, and pia. In Australia it is known as the cunjevoi (a term which also refers to a marine animal).

Care Guide

💧 Water

Giant taro needs plenty of water during the growing season because of its large leaves. Make sure to mist the plant daily and water it whenever the topsoil feels dry. However, in winter, the plant goes dormant, so you should reduce watering to once a week to avoid root rot caused by excess moisture.

☀️ Light Partial sun

The giant taro naturally grows in shaded areas such as under the forest canopy or on rocky terrains. It thrives best in partial sunlight but shows its adaptability and robust character by being able to endure full sunlight or complete shade.

Ideal: Partial sun
🌡️ Temperature 20–37.8°C

The giant taro is native to the tropics, characterized by consistent heat and moisture. It prospers in conditions of elevated heat and humidity, demonstrating a dislike for abrupt temperature shifts and demanding a steady thermal environment. Avoiding indoor temperature inconsistencies is therefore crucial. For growth, the plant typically needs a warmer environment and commonly shows intolerability to cold climates. The plant's growth may stop or it may perish if the surrounding temperature falls excessively.

Ideal temperature: 20–37.8°C
💨 Humidity normal (40-60%)

This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.

Humidity: normal (40-60%)
🪴 Soil 5-6
Soil pH: 5-6
🌱 Fertilizer

During its active growth stage, typically in the spring, summer, and early autumn, the Giant taro necessitates the highest amount of fertilizer. It's vital to fertilize to replenish vital nutrients that might be absent from the ground, encouraging the healthy development of roots and stems. Besides, it enhances the foliage appeal, which is a significant characteristic of this particular plant.

🪴 Pot & Repot
✂️ Pruning

To keep a giant taro healthy, regularly remove any dry, damaged, or yellow leaves by pruning them at the base with a serrated knife. This helps prevent nutrients from being wasted on unhealthy parts. If you notice any pests or signs of disease, promptly prune the affected leaves.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial
Genus
Alocasia
Family
Araceae
Hardiness Zone
9-12
Mature Height
1 cm to 15 cm
Mature Spread
2.13 m to 3.05 m
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
White, Cream, Green
Flower Size
15.24 cm to 20.32 cm
Bloom Time
Summer, Early fall
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Fall
Native Area
Malaysia, Cambodia, Myanmar, Laos, Australia, Congo (DRC), Thailand

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