elephant ear plant outdoor australia Alocasia macrorrhizos Giant Elephant Ear

Alocasia macrorrhizos - Giant Elephant Ear, Giant Taro

• Mature size: 1.5-3m tall outside.
• Recommended spacing: 1.5-2m apart
• Ideal growing conditions: Morning sun, part shade - Full sun (can adapt).
• Growth rate: Moderate.

Uses

Ideal as a feature plant in tropical gardens, mass plantings, shaded courtyards. Also well suited to large pots and containers on patios or verandahs, and can be grown indoors when given bright, filtered light.

Noteworthy

An evergreen tropical plant prized for its large, upright foliage that creates an instant lush, tropical-like effect. Excellent for adding height, structure and vibrancy to shaded garden spaces.

Tolerant

Performs well in partly shaded positions with high humidity, in warm tropical or subtropical climates.

Colour/Growth form

Features enormous, glossy green leaves held on strong upright stems, creating the classic “elephant ear” appearance. Produces a creamy white-green flower spathe. An excellent choice for creating a lush, tropical atmosphere both outdoors and indoors.

What is Giant Elephant Ear?

Alocasia macrorrhizos, commonly known as Giant Elephant Ear or Giant Taro, is a striking evergreen tropical plant. Its massive foliage and upright growth habit make it a standout feature in tropical gardens, shaded courtyards and large landscape plantings. When paired with Heliconias, Gingers, Philodendrons and Cordylines, it creates a dense, lush tropical atmosphere.

How to Care for Giant Elephant Ear

Plant in rich, well-draining soil and water regularly during the warmer months, allowing the soil surface to dry slightly between watering. Position in part shade, and feed with a balanced slow-release fertiliser to support strong, healthy growth.

Ideal Growing Conditions

The Giant Elephant Ear prospers in Australia's subtropical and tropical regions. It appreciates humidity and benefits from a sheltered location protected from harsh winds. While it favours partly shady spots, it can also handle full sunlight.