Bright indirect; avoid direct midday sun.
Water when top 2–3 cm dries; never leave sitting in water.
60–80% ideal.
18–28°C (avoid <16°C).
TRF Aroid & Premium Foliage Mix (chunky, airy).
Origins & natural habitat
Alocasia ‘Polly’ is a cultivated jewel alocasia, prized for its bold veining and architectural leaf shape.
In the wild, many Alocasia species grow on warm, humid forest floors and along stream edges where moisture is reliable, but soils are loose and oxygen-rich. They tend to grow in cycles: active leaf production in favourable conditions, then slower periods if light or temperature drops. This natural rhythm is normal and helps explain why consistency is the secret to success.
Recreating the environment at home
Keep warm and bright (indirect), use a very airy aroid mix, and water consistently—never leaving it bone-dry, but also never waterlogged. If your home is cool, consider semi‑hydro for stability and reduced rot risk. Gentle airflow helps prevent pests.
Common pests & what to do
Common pests: Spider mites, Thrips, Mealybugs, Fungus gnats.
Spider mites: Isolate the plant and rinse the foliage, especially the undersides. Consider a suitable biological control or a UK-authorised product labelled for the pest and plant, following its instructions exactly.
Thrips: Isolate the plant and inspect new growth and leaf undersides carefully. Sticky traps can help monitor adults; use an appropriate biological control or UK-authorised product to address the infestation, following its instructions.
Mealybugs: Isolate the plant and remove visible insects carefully with a damp cotton bud. For further treatment, use a suitable biological control or UK-authorised product exactly as directed on its label.
Fungus gnats: Avoid keeping the growing medium continuously wet. Yellow sticky traps can reduce and monitor adults, while an appropriate biological control can target the developing stages in the growing medium.
Common problems & how to respond
Root rot: Often from waterlogged substrate—signs include a sour smell and mushy roots. Remove from mix, trim rot, rinse, and re-root/rehab. If the corm is firm, recovery is common; if the corm is mushy, survival is unlikely.
Spider mites: Very common on alocasias—rinse leaves, raise humidity slightly, and treat repeatedly.
Yellowing older leaf: Can be normal cycling; if multiple leaves yellow quickly, check roots and watering.
Drooping leaves: Temperature stress or thirst—stabilise warmth and water rhythm.
Substrate preferences
Best in an airy aroid mix that holds light moisture but drains fast. For soil setups, **TRF Aroid & Premium Foliage Mix** is designed to provide chunky aeration and reduce root‑issues. Some people find semi‑hydro (Pon/LECA) works better in their homes for consistent watering; if you go that route, keep fertiliser weak-and-regular and refresh the reservoir.