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Species library › Bulbophyllum › Bulbophyllum rubrum
Orchids Partly documented

Bulbophyllum rubrum

A Malagasy Bulbophyllum listed as Vulnerable. It is recorded as an epiphyte at low elevations in northern and northwestern Madagascar (Sofia, Mahajanga/Boeny, Melaky and near Ambilobe). The climate there is hot with a strong wet season and a long dry season from May to October. Published information on its ecology is very thin, so this profile leans on the measured climate.

At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows on trees (epiphyte)

Where it grows wild

Observers record it as an epiphyte. The records come from lowland northwestern and northern Madagascar, a region of seasonally dry forest, riverine forest and humid pockets. The sources consulted don't say which forest type or host trees it favours.

Recorded elevations are 118–300 m (median 268 m), plus an older specimen from near Ambilobe at about 650 m. It is a lowland plant.

Madagascar: north and northwest (Sofia, Boeny/Mahajanga, Melaky, Diana around Ambilobe)

🔒 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.