Paphiopedilum siamense

A natural hybrid from Thailand, generally regarded as P. callosum crossed with P. appletonianum. It grows like those parents: a shade-loving, mottled-leaved forest-floor slipper that wants warm days, steady moisture in summer and a slightly drier, cooler winter.

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

Expects a seasonal restGrows in the ground

Where it grows wild

No wild records are mapped. The presumed parents grow terrestrially in humus and leaf litter on shaded forest floors and rocky slopes in seasonal evergreen forest of Thailand and Indochina.

Unknown for the hybrid. The measured site is a lowland default point at 68 m; the parents usually grow higher, in hill forest, where it is several degrees cooler.

Thailand

🔒 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.