Alocasia infernalis
Alocasia Infernalis
UK price
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- Sold, 90 days
- 0
- Middle half
- -
- Last sold
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- On record
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Cutting/cormNone
7cmNone
12cmNone
MatureNone
- Sale
- Typical
- Middle half
- Estimate
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Before you buy
- Check the corm is firm; a soft or shrunken corm indicates dehydration or rot and is very difficult to recover
- Verify there is at least one established leaf; avoid bare corms from unknown sellers unless you have experience germinating alocasia corms
- Spider mites are the most common pest: inspect leaf undersides for fine webbing or stippling, especially in dry indoor environments
- Alocasias can enter dormancy when stressed by shipping. A plant arriving with no leaves but a firm corm is not necessarily dead
About Alocasia infernalis
Native to Borneo (Sarawak), Alocasia infernalis thrives as a terrestrial or lithophytic species in wet tropical forests. It prefers shaded, humid environments with rich organic matter and consistent moisture, typically found on the forest floor or on mossy limestone rocks. This compact, self-heading Alocasia is characterized by its corm-forming base and clumping growth habit. Its thick, glossy, ovate-sagittate leaves display a dark purple-black to near-black adaxial surface with a metallic sheen, complemented by a dusky purple abaxial surface and deeply impressed primary veins. Dark purple to near-black petioles arise individually from the corm.
Native range
Borneo (Sarawak)
Classification
- Genus
- Alocasia
- Family
- Araceae
- Type
- Wild
- Growth habit
- Compact, self-heading, clumping
Morphology
- Leaf shape
- OvateEgg-shaped leaves, with the wider end near the base.-sagittateArrowhead-shaped leaves, with pointed lobes at the base pointing downwards. with a pronounced basal sinus
- Leaf length
- Medium (15-30cm)
- Leaf width
- Medium (10-20cm)
- Petiole colour
- Dark purple to near-black
- Venation
- Deeply impressed primary veins
- Texture
- Thick and glossy with a metallic sheen
- Variegation
- None
- Growth habit
- Compact, self-heading, clumping
Alocasia infernalis care
- Substrate
- Well-draining loamy mix: 40% potting compost, 30% perlite, 20% orchid bark, 10% worm castings. Alocasias need moisture retention unlike most aroids but still require good drainage.
- Watering
- Keep evenly moist during the growing season: never waterlogged, never bone dry. Check soil every 3–4 days in summer. Reduce significantly in winter when growth slows.
- Humidity
- 60–80%. Lower humidity causes brown leaf edges; very low humidity combined with dry compost will trigger dormancy.
- Feeding
- Balanced fertiliser at half strength every 2 weeks during spring and summer. Stop feeding in winter.
- Repotting
- Every 12–18 months in spring. Alocasias like being slightly snug in their pots, so don't overpot.
Common problems
Leaves yellowing and dropping
Cause: Overwatering, cold temperatures, or natural dormancy
Fix: Reduce watering; ensure temperatures stay above 16°C; dormancy is normal in winter
Brown leaf edges
Cause: Low humidity or irregular watering
Fix: Increase humidity and maintain consistent watering routine
Spider mites
Cause: Most common pest; thrive in hot, dry conditions
Fix: Mist regularly; treat with neem oil or insecticidal soap; increase humidity
Gear for this plant
- Flowers of Sulphur, 99.99% PurityDusted onto a fresh corm or rhizome cut to guard against rot before repotting.
- Precision Bonsai Pruning Scissors, 200mmFine-bladed snips for clean node cuts when taking a cutting.
- Full-Spectrum LED Grow Light Panel144-LED panel with IR and UV for supplementing light in low-light rooms.
- Humidity Dome, Heavy-Duty Germination KitVented propagation dome for holding humidity around fresh cuttings.
How to propagate Alocasia infernalis
- Methods
- Offset (corm/pup), Corm division. Step-by-step guide
- Difficulty
- Easy. Forgiving of missed waterings, average home humidity, and imperfect light. A solid pick for beginners or low-fuss collections.
- Time to establish
- 3-6 months
- Notes
- Wait for the mother plant to produce corms or pups before dividing. Larger, well-established plants produce offsets most readily. Alocasias do not propagate reliably from stem cuttings.