Light
Bright indirect • approx. 10,000–20,000 lux










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Alocasia macrorrhizos is a large green Alocasia with broad upright leaves and substantial growth. The foliage can become imposing in a roomy pot, with long petioles lifting the smooth blades high above the base. Large smooth leaves and quick expansion give the plant its bold scale when conditions are warm. Broad blades need enough space for the petioles to spread and for new leaves to open cleanly. New leaves can quickly change the size of the whole specimen during active growth. The plant is toxic on ingestion, so keep it beyond easy reach.
Quick Care Guide
Light
Bright indirect • approx. 10,000–20,000 lux
Watering
Water when ~20–30% dry
Substrate
Bark-rich aroid mix with coir and pumice; airy yet moisture-retentive
Temperature
Ideal: 18–30 °C • Avoid below: 15 °C
Humidity
Humid 60–80 % +
Growth habit
Upright clumping herbaceous perennial.
Support
not needed
Growth speed
High
Max size indoors
Max. height: 250 cm • Max. spread: 200 cm
Toxicity & safety
Toxic
Origin & habitat
Central Malesia to Queensland (Murray Group); wet tropical biome
These care values are practical reference points for indoor growing. Use them as a starting point, then adjust for your room, pot size, substrate, temperature and how quickly the plant dries.
For more context, read the full product description or visit our Plant Care Guides.
Move outside once nights stay above
18°C
Bring under cover below
15°C
Best outdoors in
Warm shaded patio, Mild summer balcony
Plant names, growth habits, natural habitats and indoor care guidance are checked against trusted botanical, habitat and horticultural references before publication.View our plant care resources and references.
Not sure which Alocasia to choose?