Alocasia reginula, commonly sold as Black Velvet Alocasia, is a small jewel-type aroid native to shaded limestone cliffs in Sabah, Malaysia, and is grown as a houseplant. The key to success is fast-draining soil, because it rots easily in dense or wet media.
Family
Araceae (Arum family)
Grows as
Bulb
Light
Bright indirect
Water
Water when the top of the mix is nearly dry, and never let it sit in water.
Soil
Chunky, very well-draining aroid mix with perlite, bark and charcoal; avoid dense, peat-heavy media.
Temperature
18–28 °C; protect below 15 °C
How easy
Hard
Safety
Toxic: All parts contain calcium oxalate crystals that cause mouth and throat irritation, swelling and drooling if chewed.. Toxic to cats and dogs (ASPCA).
Native range
Borneo (?)
Climate
wet tropical
About
Alocasia reginula, black velvet, is a species of flowering cormous aroid (family Araceae), native to Sabah state in Malaysia. This plant, often referred to as one of the "jewel" Alocasias (along with several other diminutive Alocasia types), became increasingly popular among plant hobbyists between the years 2018 to 2020. Until as recently as 2021 though, not much was known about the plant or its origins. Originally described from cultivation, and often sold as "Alocasia 'Black Velvet'", it is not a modern cultivar or hybrid; A. reginula is its own natural species. It is only known from dry, deeply shaded limestone cliffs in Tabin Wildlife Reserve. As a houseplant it needs sharp drainage or it will very likely rot.
Many plant vendors and stores sell houseplants in far too thick and dense of potting media.
Text excerpted from the Wikipedia article Alocasia reginula by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.