Alocasia portei
Sources last read 14 September 2026.
Not yet rated How forgiving it is has not been judged here yet.
Alocasia portei is toxic
- Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
- Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
- Toxic to people. Harmful when eaten; irritates skin and eyes and can cause allergy. Use gloves and protective gear when handling it. RHS
What the sources say about its care
- Light
- Partial shadeRHS · read 13 September 2026
- Water
- Moist but well-drainedRHS · read 13 September 2026
- Humidity
No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.
ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%Penn State Extension · read 13 September 2026- Temperature
How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.
H1A — warmer than 15°C 15 °CRHS · read 13 September 2026- Soil
- Loam, Sand; pH Acid or NeutralRHS · read 13 September 2026
- Toxic to cats
- Not on the ASPCA list. That is not a finding of safety.ASPCA · read 13 September 2026
- Toxic to dogs
- Not on the ASPCA list. That is not a finding of safety.ASPCA · read 13 September 2026
- Harmful to people
- Harmful when eaten; irritates skin and eyes and can cause allergy. Use gloves and protective gear when handling it.RHS · read 13 September 2026
Routine care
- Watering
- In the growing season, let the upper 5cm of compost get just dry, then water the compost thoroughly. Where tap water is hard, water with clean, room-temperature rainwater so the compost does not turn alkaline, which would in time become toxic to the plant. Do not leave plants standing in water for extended periods, as this can rot the roots.RHS · read 13 September 2026
- Feeding
- From April to September, the growing season, feed monthly with a liquid houseplant fertiliser. In winter growth slows greatly, so water may be needed less often; do not feed again until spring.RHS · read 13 September 2026
- Repotting
- Repot every 2 to 3 years.RHS · read 13 September 2026
- Propagation
- Once clumps form, divide them, or divide the rhizome and pot each section separately to root and grow on.RHS · read 13 September 2026
- Pruning
- Pruning is not needed.RHS · read 13 September 2026
- Pests and diseases
- Mealybugs, glasshouse red spider mite and scale insects can attack it. Disease is uncommon.RHS · read 13 September 2026
Move something and watch
Loading the simulator. It needs JavaScript; the care table above does not.
Photographs
About the plant
Alocasia portei is a species of flowering plant in the family Araceae, native to Luzon in the Philippines. With Alocasia odora it is the pollen parent of the large landscaping plant Alocasia × portora.
From Wikipedia, CC BY-SA 4.0 · read 13 September 2026
- Native range
- Philippines (Luzon)World Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026PhilippinesRHS · read 13 September 2026
- Climate
- wet tropicalWorld Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026
- Growth form
- subshrub or shrubWorld Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026Clump forming (evergreen)RHS · read 13 September 2026
- Size
- Height 4-8 metres; spread 1.5-2.5 metres after 10–20 yearsRHS · read 13 September 2026
- Flowering
- Flowers cream in summer; pink in summerRHS · read 13 September 2026
Other Alocasia
AlocasiaBrown brittle margins with a green centre
- No photograph yetAlocasia azlaniiSourced care, difficulty not yet judged
- No photograph yetAlocasia lauterbachianaSourced care, difficulty not yet judged
Alocasia micholitzianaSourced care, difficulty not yet judged
- No photograph yetAlocasia reversaSourced care, difficulty not yet judged
Alocasia zebrinaSourced care, difficulty not yet judged
More of the Araceae family
Arrowhead plantEdges of the leaf blades brown while the middle stays sound
Calla lilyEdges of the leaves brown while the middle stays sound
Dumb caneLeaf tips go crisp and brown
Elephant earCrisp margins that appear in winter
Flamingo flowerBrown brittle margins with a green centre
Heartleaf philodendronA thin dry rim that crumbles between the fingers
Plants with similar care
AcajouSourced care, difficulty not yet judged
Acorus gramineusSourced care, difficulty not yet judged
Alberta Prayer PlantSourced care, difficulty not yet judged
Aluminum plantSourced care, difficulty not yet judged
Angel WingsSourced care, difficulty not yet judged
AngeloweedSourced care, difficulty not yet judged
Sources
- ASPCA · read 13 September 2026
- Kew WCVP · read 13 September 2026
- Penn State Extension · read 13 September 2026
- RHS · read 13 September 2026
- Wikipedia · read 13 September 2026
What this does not cover
The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.
Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.
If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.