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Species library › Bulbophyllum › Bulbophyllum longissimum
Orchids Little published: much of this is inferred from related species

Bulbophyllum longissimum

A lowland Southeast Asian Bulbophyllum (formerly Cirrhopetalum) famous for its lateral sepals, which hang down as ribbons up to 30 cm long. Small pseudobulbs of 2.5–4 cm each carry a single leathery leaf 9–15 cm long, and a pendant stem carries a fan of 3–7 cream-to-pale-yellow flowers with red stripes or spots. It is a warm-growing epiphyte that needs constant warmth and humidity and a mount or basket where the long flowers can hang freely.

Bulbophyllum longissimum
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 Dappled lightDLI and PPFD in Plantistry
No rest periodGrows on trees (epiphyte)

Where it grows wild

An epiphyte of lowland forest. Little habitat detail is published; like its relatives it probably grows on branches and trunks in humid, partly shaded forest, often near streams.

Described as growing at low elevations; no recorded elevations are available.

Peninsular MalaysiaThailand (south)Myanmar (south)Borneo

🔒 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.