# Elephant ear (Alocasia macrorrhizos)

Canonical: https://plantguide.ae/plants/elephant-ear · Updated: 2026-09-30
Source: Ghaf Gardens (https://plantguide.ae/plants/elephant-ear)

Elephant ear · also called Giant taro  
shrub · exotic · family Araceae · grows 1.5–3 m tall, 1.5–2.5 m wide · fast growth  
part shade · high water need  
Ratings for Dubai (1–5, 5 is best): heat 2 · salt 1 · drought 1 · shade 5 · ease of care 2  
Sow or plant: Mar–Apr, Sep–Oct  
Uses: specimen, container  
Garden styles: tropical

A giant-leaved shade plant that brings jungle scale to a sheltered courtyard corner — needs real shade and consistently moist soil, and its sap irritates skin and eyes, so keep it away from small children.

## About

Meet elephant ear, the plant that makes a shaded corner feel like it belongs somewhere far wetter than Dubai. Its leaves are the whole point — heart-shaped, matte, sometimes reaching the better part of a metre across on a well-fed clump — and they arrive fast, turning a bare, shady patch behind a wall into something genuinely jungle-scaled within a single warm season.

Its character is lush and a little demanding, closer to the tropics it actually comes from than to the drought-adapted plants that make up most of this library. It wants shade, steady water and rich soil, and it tells you immediately when any of those slip — the big leaves droop within hours of a missed watering, a far more honest signal than the slow decline of a stressed succulent.

That same plant, elsewhere in the world, is eaten: in parts of the Pacific and Southeast Asia the corm and stem are staple food once thoroughly cooked, which breaks down the needle-like crystals that make the raw plant painful to touch. In a Dubai garden it plays a purely ornamental role, valued for the sheer drama of its foliage rather than anything on the plate, but that dual identity — jungle food crop and shade-garden showpiece — is part of what makes it more interesting than the average big-leaved plant.

Elephant ear is a rainforest understory plant from Southeast Asia and the Pacific, and it behaves like one here: it wants filtered or dappled shade, not open Dubai sun, and consistently moist soil rather than the deep-and-infrequent watering that suits most of our drought-tolerant plant library. In the right spot — under a tree canopy, a pergola, or the shaded side of a wall — its huge, heart-shaped leaves give a courtyard genuine jungle scale fast.

It's a fast, easy spreader once it has shade and water, multiplying by offsets so a single clump fills in without buying more plants. But it has low drought tolerance: the big leaves wilt quickly if a watering is missed in summer, and full, unshaded sun scorches and bleaches them rather than encouraging growth.

The one safety note worth taking seriously: the sap contains needle-like calcium oxalate crystals that irritate skin and are genuinely painful in the eyes, and all parts of the plant are toxic if chewed or eaten. Wear gloves when pruning or dividing it, and think twice before planting it somewhere small children or pets roam unsupervised.

## Through the year

Elephant ear grows fastest in the warm shoulder seasons, with new leaf flushes through March–May and again in September–October once summer's worst heat has broken. Feed monthly through those same active-growth windows to support the size the leaves are grown for. Through the driest, hottest stretch of summer (June–August) watch for spider mites, which build up fastest when the air is dry even though the plant itself wants consistently moist soil. Growth slows through the coolest weeks of winter (December–January), a normal rest rather than a problem, before picking back up as spring warmth returns.

| When | What | Note |
| --- | --- | --- |
| Mar–Apr, Sep–Oct | Plant: Best planting window | Avoid planting in the coldest winter snap or the hardest summer heat. |
| Mar–May, Sep–Oct | New growth: New leaf flush in warm, sheltered shade |  |
| Dec–Jan | Dormant: Growth slows in the coolest weeks of winter |  |
| Jun–Aug | Pest watch: Watch for spider mites in dry summer heat |  |
| Apr–May, Sep–Oct | Feed: Main feeding window during active growth |  |

## Care in Dubai

- **Watering in summer:** Keep the soil consistently moist — water deeply most days in full summer heat, more often for a potted plant.
- **Watering in winter:** Reduce to two or three times a week; let the surface dry slightly between waterings.
- **While establishing:** Water every one to two days for the first month while new roots establish in the shade bed.
- **Soil:** Rich, moisture-retentive but free-draining soil; add compost and a thick mulch layer.
- **Feeding:** Feed monthly through the warm season with a balanced fertiliser.
- **Pruning:** Cut off yellowed or damaged leaves at the base; wear gloves, since the sap irritates skin.
- **Planting:** Plant in full or part shade — under a tree canopy, a pergola, or the shaded side of a wall — sheltered from wind and the harshest sun.
- **Pests and problems:** Spider mites; Mealybug; Aphids on new growth
- **Toxicity:** All parts contain calcium oxalate crystals that irritate skin, eyes and mouth on contact, and cause vomiting and mouth pain if eaten. Keep it away from pets and small children, and wear gloves when pruning or dividing it.

## Good and bad

**Pros**
- Huge, dramatic leaves give instant jungle scale under a pergola or shade tree
- Genuinely shade-loving, filling the dim courtyard corners most tropical plants struggle in
- Fast growing once it has shade and steady moisture
- Spreads by offsets, so one clump multiplies without buying more plants

**Cons**
- Sap irritates skin and eyes on contact — wear gloves when pruning or dividing it
- Low drought tolerance: the big leaves wilt fast if watering is missed in summer
- Needs real shade — full Dubai sun scorches and bleaches the leaves
- Toxic if chewed or eaten, including by pets — not for a garden used by small children

## Common mistakes

- Planting it in open, unshaded sun expecting it to behave like other 'tropical-looking' plants in this library. It is a genuine rainforest understory species and scorches badly without real shade.
- Letting the soil dry out between waterings the way you would for a drought-tolerant shrub. Elephant ear has low drought tolerance and wilts visibly within hours of a missed watering in summer heat.
- Handling or dividing it without gloves. The sap's needle-like calcium oxalate crystals irritate skin and are genuinely painful if they reach the eyes.
- Planting it where small children or pets roam unsupervised. All parts of the plant are toxic if chewed or eaten, and this deserves the same caution given to any toxic ornamental.
- Underestimating its eventual size when planting a small nursery specimen. A well-fed clump in good shade can reach 1.5–2.5 m across within a couple of seasons, so give it real room from the start.

## Good to know

- In parts of the Pacific and Southeast Asia the corm and stem of this species are a traditional food crop once thoroughly cooked or dried, which breaks down the calcium oxalate crystals that make the raw plant irritating — in a Dubai garden it is grown purely as an ornamental, not for eating.
- The sap causes a genuinely painful, needle-like irritation on skin and especially in the eyes, and all parts are toxic if chewed or eaten, including by pets.
- It multiplies by offsets at the base of an established clump, so a single well-sited plant can be divided into several without buying more stock.
- Its heat and drought ratings sit near the bottom of this plant library, a useful reminder that 'tropical-looking' and 'low-maintenance' are not the same thing in a Dubai garden.

## Using it in a garden

Roles: Shaded courtyard specimen, Poolside jungle accent, Understorey planting beneath trees, Large container for a shaded terrace

This plant only works in real shade — under a tree canopy, beneath a pergola, or on the shaded side of a tall wall — never in open Dubai sun, which scorches and bleaches the leaves rather than encouraging growth. It wants shelter from wind as well as sun, and a spot where consistent watering is practical, since it shows stress within hours of drying out. Keep it out of gardens where small children play unsupervised, given the sap's toxicity, and give it real room: a well-fed clump can reach 1.5–2.5 m across.

- [Banana](https://plantguide.ae/plants/banana.md): Both want shade-to-part-shade, rich soil and steady moisture, so they share a watering zone easily in the same sheltered jungle-style corner.
- [Bird of paradise](https://plantguide.ae/plants/bird-of-paradise.md): A similar bold-leaved tropical look with lower water demand, letting elephant ear anchor the shadiest, wettest part of the same bed.
- [Traveller's palm](https://plantguide.ae/plants/travellers-palm.md): Travellers-palm's tall, fan-shaped silhouette gives vertical structure above elephant ear's broad, low-growing leaves in a layered tropical planting.

## FAQ

**Can elephant ear cope with Dubai's summer sun?**  
Not in the open — it's a rainforest understory plant and needs real shade from the harshest sun, ideally under a tree canopy or pergola with only filtered morning light.

**Is it actually dangerous to touch?**  
The sap can irritate skin and is genuinely painful if it gets in your eyes, so wear gloves when pruning, dividing or handling it, and keep children and pets from chewing the leaves or stems.

**Does it need special watering compared to other tropical-looking plants here?**  
Yes — it has low drought tolerance, so the soil should stay consistently moist. Missing waterings in summer shows quickly as wilting on the big leaves.

**Is elephant ear the same plant people eat as taro in some cuisines?**  
It's closely related — the corm and stem of this species are eaten as a staple food in parts of the Pacific and Southeast Asia, but only after thorough cooking to destroy the irritant crystals. As grown in a Dubai garden, it should be treated as ornamental only, not as a food source.

## Related plants

[Banana](https://plantguide.ae/plants/banana.md) · [Bird of paradise](https://plantguide.ae/plants/bird-of-paradise.md) · [Traveller's palm](https://plantguide.ae/plants/travellers-palm.md) · [Heliconia](https://plantguide.ae/plants/heliconia.md) · [Fiddle-leaf fig](https://plantguide.ae/plants/fiddle-leaf-fig.md)

## Photos

![Alocasia macrorrhiza specimen in the Jardin botanique du Val Rahmeh, Menton, Alpes-Maritimes, France.](https://upload.wikimedia.org/wikipedia/commons/4/42/Alocasia_macrorrhiza_-_Val_Rahmeh_-_DSC04448.JPG)  
Photo: Daderot / Public domain / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Alocasia_macrorrhiza_-_Val_Rahmeh_-_DSC04448.JPG))

![インドクワズイモ](https://upload.wikimedia.org/wikipedia/commons/3/31/Alocasia_macrorrhizos1.jpg)  
Photo: KENPEI / CC BY-SA 3.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Alocasia_macrorrhizos1.jpg))

![Orelha-de-elefante, Alocasia macrorrhizos, em Bagé-RS, Brasil](https://upload.wikimedia.org/wikipedia/commons/7/78/Orelha-de-elefante%2C_Alocasia_macrorrhizos%2C_em_Bag%C3%A9-RS%2C_Brasil.jpg)  
Photo: O Tupinólogo / CC BY 4.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Orelha-de-elefante,_Alocasia_macrorrhizos,_em_Bag%C3%A9-RS,_Brasil.jpg))

## Sources

- [Wikipedia — Alocasia macrorrhizos](https://en.wikipedia.org/wiki/Alocasia_macrorrhizos)
- [Poison Control (National Capital Poison Center) — Are plants in the Alocasia genus poisonous?](https://www.poison.org/articles/are-plants-in-the-alocasia-genus-poisonous-221)
- [Dubai Nursery — Alocasia product listing (UAE availability and shade use)](https://www.dubainursery.ae/product/alocasia/)
- [PFAF Plant Database — Alocasia macrorrhizos (edible corm and stem when cooked)](https://pfaf.org/user/Plant.aspx?LatinName=Alocasia+macrorrhizos)