Alocasia Brisbanensis (cunjevoi) care

Light

In the wild alocasia brisbanensis grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Bright, filtered light mimics its rainforest-edge home. It tolerates some gentle morning sun but harsh afternoon sun burns the broad blades. In deep shade it grows leggy with smaller, paler leaves. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for when the top 2-3 cm of mix is dry, roughly every 5-8 days in growth for alocasia brisbanensis, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. A thirsty grower that likes consistent moisture during active growth but resents standing water. Water deeply, let it drain, and let the surface dry slightly before repeating. Cut back markedly in cool weather.

Soil and pot

Alocasia Brisbanensis grows best in rich, moisture-retentive yet free-draining mix. Use a fertile aroid blend of compost or peat with perlite and bark. It is more forgiving of richer soil than smaller Alocasia but still needs sharp drainage to protect the tuber from rot. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Alocasia Brisbanensis sits happiest at around 60-80% humidity and 18-30°C (65-86°F). As a rainforest plant it loves high humidity and stays lushest above 60%. Dry indoor air browns leaf margins. Outdoors in frost-free climates it thrives in sheltered, humid shade. If you keep the room above 18 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed alocasia brisbanensis sparingly. A hungry grower; feed every 2-3 weeks through spring and summer with a balanced liquid fertiliser at half to full strength. Outdoor plants benefit from a spring topdress of compost. Stop feeding in winter when growth slows. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on alocasia brisbanensis in the Growli community. Each is annotated with the most common cause so you know where to start.

• Drooping or wilting — Often underwatering on a thirsty plant, or conversely root rot from soggy soil. Check the mix's moisture before correcting either way.
• Brown leaf margins — Dry air or fertiliser-salt buildup. Raise humidity and flush the pot periodically with clean water.
• Leaf scorch — Pale or bleached patches from direct afternoon sun. Move to brighter shade or filtered light.
• Sap irritation — Cut or crushed tissue releases irritant oxalate sap; wear gloves when dividing or pruning to protect skin and eyes.

Propagation

Propagate by division of the clump or by separating tubers and offsets in spring. Replant divisions in a warm, humid spot with a rich, well-drained mix and keep evenly moist until established. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Alocasia Brisbanensis is toxic to pets. The ASPCA classifies Alocasia as toxic to cats and dogs, and cunjevoi is a known toxic plant in Australia. All parts hold insoluble calcium oxalate crystals; ingestion causes severe oral burning, drooling, swelling, vomiting, and difficulty swallowing. Keep well away from pets and children. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Alocasia Brisbanensis deep-dive guides

Every aspect of alocasia brisbanensis care, each with its own calibrated guide:

• Alocasia Brisbanensis watering schedule
• Alocasia Brisbanensis light requirements
• Best soil mix for alocasia brisbanensis
• Alocasia Brisbanensis fertilizing guide
• When to repot alocasia brisbanensis
• How to propagate alocasia brisbanensis
• Alocasia Brisbanensis growth rate & size
• Alocasia Brisbanensis cold hardiness
• Alocasia Brisbanensis temperature & humidity
• Is alocasia brisbanensis toxic to cats & dogs?
• Is alocasia brisbanensis toxic to cats?
• Is alocasia brisbanensis toxic to dogs?

Featured in these plant shortlists

Alocasia Brisbanensis qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Alocasia Brisbanensis is also commonly called cunjevoi or Queensland alocasia.

• Types of alocasia — varieties identified, with care and pet-safety
• Monstera care — light, water and common problems
• Pothos care — light, water and common problems
• Fiddle leaf fig care — light, water and common problems
• All 2464 plant care guides in the Growli library