Bright indirect; no harsh sun.
Water when top 2–3 cm dries; avoid waterlogging.
60–80% ideal.
18–28°C (avoid <16°C).
TRF Aroid & Premium Foliage Mix (chunky, airy).
Origins & natural habitat
Alocasia ‘Black Velvet’ is a jewel alocasia with compact growth and dark, velvety foliage.
Its wild relatives come from warm, humid rainforest environments where light is filtered and soils are loose and oxygen-rich. Like many alocasias, it grows in cycles and is sensitive to cold, wet roots. This is why the plant can look ‘fussy’ in dense compost, but performs brilliantly in airy media with consistent warmth.
Recreating the environment at home
Keep warm, give bright indirect light, and use a very airy aroid mix. Water consistently but never let it sit in water. Semi‑hydro can be an excellent choice in cooler homes.
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: Smell + mushy roots—remove, trim rot, and rehab. If the corm is firm, recovery is common; if mushy, chances are low.
Spider mites: Rinse and treat repeatedly—alocasias attract them in dry air.
Yellowing leaf: Often natural cycling; if rapid, check root health.
Droop: Cold stress—raise temperature and avoid draughts.
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.