Alocasia ‘Venom’

Background of Alocasia ‘Venom’

The ‘Amazonica’ ancestry of Alocasia ‘Venom’ combines Alocasia sanderiana from damp lowland ravines on Mindanao with Alocasia longiloba from Southeast Asian forest floors and rocky ravines. Both parent species grow in warm, humid forest where the canopy filters the light. Indoors, keep a loose, free-draining mix evenly moist.

Caring for Alocasia ‘Venom’

• Light: Provide bright, filtered light and shield the sculpted foliage from strong direct sun.
• Watering: Maintain even moisture and water again as the surface begins to feel less damp. Free drainage keeps oxygen available to the roots.
• Humidity: Aim for 60–80% humidity and keep the level steady around new growth.
• Temperature: Keep the plant at 22–26°C, with temperatures above 18°C supporting dependable active growth.
• Substrate: Use a rich mix that holds even moisture and retains an open, well-aerated structure.
• Repotting: Repot once roots fill the available space or drainage begins to slow. Choose a container one modest size larger.
• Feeding: Apply a diluted complete fertiliser during active growth. Reduce or pause applications during an observed growth pause.
• Propagation: Propagate through offsets, cormels or rhizome division when the plant produces them.

Diagnosing problems in Alocasia ‘Venom’

• Jagged leaves or an unusual outline: An irregular, toothed shape is normal when it repeats across clean, firm leaves. Thrips damage is usually uneven and comes with silver scarring, black specks, tears or buckling that appears as a leaf unfolds. Inspect emerging growth and leaf undersides, isolate a confirmed infestation and repeat a targeted treatment. Thrips guide.
• Fine pale stippling or lost shine: Spider mites can hide against dark foliage. Use a hand lens along the underside of the midrib and primary veins. Isolate and rinse the plant, then treat repeatedly so newly hatched mites are also controlled. Existing marks remain, so judge success from clean new growth. Spider-mite guide.
• Rapid yellowing and wilt in moist mix: Check the roots before adding more water. Healthy roots feel firm and are pale or lightly coloured; decayed roots are brown, soft or easily stripped. Remove dead material and repot in fresh, airy mix using a container only slightly larger than the healthy root mass.
• Crisp edges or bleached tan patches: Edge burn across several leaves may follow a dry root episode, salt build-up or root damage. A pale patch mainly on the window-facing side is more typical of sun scorch. Move the plant out of harsh rays, restore steady moisture and keep feeding moderate. Damaged areas stay visible; improvement appears in later leaves.

Alocasia ‘Venom’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• Its leaves and stems contain insoluble calcium oxalate crystals, which can irritate the mouth, throat, skin and eyes.
• Chewing may cause burning pain, drooling, swelling, vomiting or difficulty swallowing. Contact a veterinarian or medical professional after exposure, especially if swelling or breathing problems occur.

Why Mason Lee chose ‘Venom’

Alocasia combines the Greek prefix a-, meaning “without” or “lacking”, with Colocasia, the name of a related aroid genus.

The formal botanical citation is Alocasia (Schott) G.Don. George Don established the genus at that rank in 1839 in Hortus Britannicus, edition 3, page 631.

Mason Lee discovered ‘Venom’ in South Korea around 2019 as a mutation of Alocasia ‘Amazonica’; it entered wider commercial circulation around 2022.

Lee chose the name because the leaf form reminded him of Venom, the Marvel character.