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Aroids Well documented

Alocasia reginula

The 'Black Velvet' Alocasia: a small plant with thick, dark, velvety leaves and silvery veins. It was popular in the trade long before anyone knew where it grew wild, and it has since been found only on deeply shaded limestone in Tabin Wildlife Reserve, eastern Sabah. The measured lowland climate is hot and humid all year, but the plant's own niche is a shaded, fairly dry rock face, so it wants warmth and very sharp drainage rather than wet soil.

Alocasia reginula
Photo: Forest & Kim Starr, CC BY 3.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Deep shadeDLI and PPFD in Plantistry
No rest periodGrows on rock (lithophyte)

Where it grows wild

Terrestrial or lithophytic at the base of limestone ridges, on limestone or on soil among limestone boulders. It is described as growing on dry, deeply shaded limestone cliffs. Roots run through thin pockets of humus in the rock, so they drain almost at once after rain.

The one wild specimen with an elevation was collected at 40 m near the Tabin River, so it is a true lowland plant. The warm nights in the measured climate agree.

Borneo: Sabah

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY 3.0 licence, unmodified.