Species library › Bulbophyllum › Bulbophyllum grandiflorum
Orchids Partly documented

Bulbophyllum grandiflorum

A creeping section Hyalosema Bulbophyllum from New Guinea, the Solomon Islands and eastern Indonesia, whose large, single flowers on long stalks far exceed the small plant. It grows as an epiphyte low on trunks in primary lowland rainforest, mostly between about 100 and 800 m. It needs warm, constantly humid conditions, shade and room to creep.

Bulbophyllum grandiflorum
Photo: sunoochi from Sapporo, Hokkaido, Japan, CC BY 2.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows on trees (epiphyte)

Where it grows wild

Low on tree trunks and on fallen trees in primary lowland rainforest and coastal forest; also recorded in an old rubber plantation and, rarely, mangrove swamp.

Literature gives about 100–800 m; wild records with elevation fall at 50–450 m, though some New Guinea specimens come from mossy forest at higher, unrecorded elevations.

New GuineaSolomon IslandsMalukuSulawesiSumatra

🔒 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 2.0 licence, unmodified.