Phalaenopsis sumatrana

A medium-sized, warm-growing epiphytic Phalaenopsis from forests of peninsular Thailand, Vietnam and Sumatra, with large overlapping oval leaves on a short stem. It carries waxy, mildly fragrant, variably barred flowers on inflorescences about 30 cm long from spring to autumn. It is a parent of the natural hybrids P. × singuliflora and P. × gersenii.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodGrows on trees (epiphyte)

Where it grows wild

An epiphyte on trees in humid tropical forest, typically in shade low on trunks or branches.

Reported from lowland forest at around 600–700 m.

Thailand (peninsular)VietnamSumatra

🔒 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.