Bulbophyllum weinthalii

Wax orchid

The wax orchid is a small epiphyte that forms dense clumps of crowded pseudobulbs, 10–20 mm long, each with a single narrow leaf. It grows almost exclusively on the scaly bark of hoop pine (Araucaria cunninghamii) in upland rainforest from southeast Queensland to Dorrigo in New South Wales. It carries single thick, waxy white-green-cream flowers blotched or streaked with red-purple in autumn. Its host specificity makes it a challenge in cultivation, so it needs a bark mount, bright airy conditions and cool winters.

At home, aim for

Day Cool-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

It grows on the upper branches of hoop pines in rainforest, rooted into the flaking bark. That position is bright, breezy and quick-drying compared with the forest interior.

PlantNET gives 600–1000 m. The nine records with an elevation span 566–1100 m, median 600 m, which agrees well.

Southeast QueenslandNortheast New South Wales (north of and including the Dorrigo district)

🔒 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.