Alocasia reginula 'ninja' – care guide

Botanical fact sheet

Alocasia ninja

✓ Verified fact sheet Nov 5, 2026

Taxonomy: Family: Araceae · Genus: Alocasia
Plant type: Tropical, perennial, rhizomatous, herbaceous ornamental plant from the Araceae family. It belongs to the horticultural group of Alocasia reginula.
Native distribution: The Ninja's independent natural distribution area is not known, as it is a horticultural plant. Its base species, Alocasia reginula, is associated with Borneo, specifically the Malaysian Sabah region.
Natural habitat: The Ninja's independent natural habitat is not known. The wild occurrence of the base species has been documented in the limestone cliffs of the Tabin Wildlife Reserve in Sabah. The habitat includes shady areas and also encompasses drier rock faces under natural conditions.
Height / growth form: Compact growing, short-stemmed, rhizomatous plant. Its leaves develop on long petioles. The mature size depends on the growing conditions and the age of the plant; the exact, reliable species-specific maximum size of the Ninja is not clarified.
Flowering period: There is no reliable, species-specific data on the Ninja's distinct flowering period. The inflorescence characteristic of the Alocasia genus is a spike inflorescence surrounded by bracts.
Growth & dormancy period: Growth is primarily active under suitable warm and light conditions. Growth may slow down under unfavorable environmental conditions or lower temperatures. A separate, proven Ninja-specific dormant period is not known.
Ecology: The Ninja is a horticultural plant, and its natural ecological conditions are not documented independently. Its base species has adapted to tropical environments. The dark, thick, velvety leaves and the prominent light veins are the main distinguishing features of the horticultural form.

Sources (2)

Aroidpedia – Alocasia reginula 'Black Ninja'
Kew – Alocasia reginula A.Hay · CC BY 3.0

Automatic data comes from the open sources above, credited per their licences. Care experience is shown separately below.

Community knowledge

Tips & experience from members

What worked for you? Your plant’s growing conditions are attached automatically, so others can see who it works for.

No tips for this species yet – be the first to share what worked for you!

Real data

How members water it

Not enough logs yet: at least 3 plants with regular watering logs are needed (now: 0). Waterings logged in Care feed this – anonymised and aggregated.

Care guidelines

How it thrives

General data for the genus Alocasia – no species-specific data yet

Watermediumgeneral genus data

Lightbright indirectgeneral genus data

Humidityhighgeneral genus data

Min. temperature18 °Cgeneral genus data

No dormancy · general genus dataDifficulty: ●●●○○ · general genus data⚠ May be toxic to pets / people · general genus data

No monthly schedule is shown because cultivar-/species-level data is not yet sufficient. The general values above are guidance only.

Alocasia tip: It often drops leaves in winter – that is rest, not death; water less then.

⚠ Pets & children · genus Alocasia

🐱Cat moderate🐶Dog moderate🐴Horse moderate🦜Pet bird moderate🐰Rabbit, rodent moderate🐮Cattle moderate🐐Sheep, goat moderate🐷Pig moderate🐔Poultry moderate🐢Tortoise, herbivorous reptile moderate🧒Human (child) moderatedetails →

At a glance

Alocasia reginula 'ninja' – what to know

Alocasia ninja belongs to the genus Alocasia (Araceae); there is no species-specific data yet. General care guidelines for the genus Alocasia (no species-specific data yet): light: bright indirect; water: medium; min. 18 °C. One Perfect Plants Club member grows it (1 photos). For cats: moderately toxic; for dogs: moderately toxic. Keep it out of reach and call a vet straight away if you suspect poisoning.

All Alocasia species in the catalog →Detailed toxicity data →

Frequently asked questions

How often should I water Alocasia reginula 'ninja'?

According to the general guideline for the genus Alocasia: Moderately: water when the top 2–3 cm of soil is dry, and never let it sit in standing water.

How much light does Alocasia reginula 'ninja' need?

According to the general guideline for the genus Alocasia: It likes bright but indirect light, such as near an east- or west-facing window.

How cold can Alocasia reginula 'ninja' get?

According to the general guideline for the genus Alocasia: Keep it above 18 °C – it is frost-tender and needs a frost-free spot in winter.

Is Alocasia reginula 'ninja' toxic to cats and dogs?

For cats: moderately toxic; for dogs: moderately toxic. Keep it out of reach and call a vet straight away if you suspect poisoning.

Community intelligence