Alocasia reginula 'Ninja'Zoltan Bardi · All rights reserved
Houseplant · Cultivar

Alocasia reginula ‘Ninja’

Parent species: Alocasia reginula

A cultivated selection of Alocasia reginula that appeared on the market around 2020, sometimes sold as 'Black Ninja' or 'Black Velvet Ninja'. It differs from 'Black Velvet' in its thicker, firmer, more embossed "armoured" leaves, sharper and more silvery veining and a characteristic double marginal vein; mature leaves become larger and rounder.

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Botanical fact sheet

Alocasia reginula ‘Ninja’

✓ Verified fact sheet Nov 5, 2026
Alocasia reginula ‘Ninja’
Photo: Zoltan BardiAll rights reservedInfringing image? Let us know
Taxonomy
Family: Araceae · Genus: Alocasia7
Plant type
Tropical, perennial, rhizomatous, herbaceous ornamental plant from the Araceae family. It belongs to the horticultural group of Alocasia reginula.
Height / growth form
Compact, about 30–45 cm tall and 25–40 cm wide. The leaves are thicker, harder, and more convex than those of 'Black Velvet', with sharper silvery veins and a characteristic double edge; in adulthood, the leaves are larger and rounder.456
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.

Still missing: native distribution, natural habitat, flowering period.

Sources (7)
  1. Aroidpedia – Alocasia reginula 'Black Ninja'
  2. Kew – Alocasia reginula A.Hay · CC BY 3.0
  3. Garden.org – Alocasia
  4. Aroidpedia – Alocasia reginula 'Black Ninja' · Height / growth form
  5. PLNTS – Alocasia Ninja · Height / growth form
  6. Plant Lust – Alocasia 'Ninja' · Height / growth form
  7. GBIF Backbone Taxonomy – Alocasia reginula · Scientific name · CC BY 4.0
Community knowledge

Tips & experience from members

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Real data

How members water it

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Care guidelines

How it thrives

Partly general data for the genus Alocasia
Watermediumparent species data
Lightbright indirectparent species data
Humidityhighparent species data
Min. temperature15 °Cparent species data
No dormancy · general genus dataDifficulty: ●●●○○ · general genus data⚠ May be toxic to pets / people

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

Alocasia reginula tip: Plant in a loose, airy mix that partly dries between waterings – it rots in soggy soil. Keep it away from air conditioners and heaters; it dislikes sudden temperature changes.

⚠ Pets & children · genus Alocasia
Cat moderateDog moderateHorse moderatePet bird moderateRabbit, rodent moderateCattle moderateSheep, goat moderatePig moderatePoultry moderateTortoise, herbivorous reptile moderateHuman (child) moderatedetails →
At a glance

Alocasia reginula 'Ninja' – what to know

Alocasia reginula ‘Ninja’ is a cultivar of Alocasia reginula (Araceae). Care guidelines: light: bright indirect; water: medium; min. 15 °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.

Frequently asked questions

How often should I water Alocasia reginula 'Ninja'?

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?

It likes bright but indirect light, such as near an east- or west-facing window.

How cold can Alocasia reginula 'Ninja' get?

Keep it above 15 °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

What members’ data shows

When does it really bloom?

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Average watering interval

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Questions about this species

Same genus

Alocasia

Data sources: GBIF.org – Alocasia reginula (CC BY 4.0) · Care data is for guidance only.

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