Dendrobium baileyi

Blotched gemini orchid

A rainforest epiphyte from tropical north Queensland, New Guinea and the Solomon Islands, with arching leafy stems and short-lived, spidery yellowish-green flowers blotched dark purple, usually borne in ones or twos. In Australia it grows on trees, and occasionally rocks, in lowland to upland rainforest between the McIlwraith Range and Townsville. It wants warm, humid, shaded conditions year-round with only a mild winter slowdown.

Dendrobium baileyi — Photo: Kai Squires, CC BY 4.0, 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

Epiphytic on trees in rainforest, sometimes on rocks, in humid, shaded positions, often near streams. The stems arch or hang from branches and trunks.

Recorded elevations are 2–2,500 m, median 160 m (27 records). Most Australian records are lowland to about 1,000 m; the highest values likely come from New Guinea.

Australia: north-east Queensland, from the McIlwraith Range south to about TownsvilleNew GuineaSolomon Islands

🔒 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 4.0 licence, unmodified.