Hoya lacuna

Hoya lacuna is a name from Wallich's 1847 numerical list, attributed to Buchanan-Hamilton, and it was never properly described. GBIF accepts the name but holds no wild record, no locality and no climate data, so anything grown under this label should be treated as an unplaced Indo-Burmese hoya and cultivated by the plant's own signals.

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

Unknown. Buchanan-Hamilton's Wallich-list hoyas came from the Bengal, Nepal and Burma region, where hoyas are epiphytic climbers of humid monsoon forest.

No elevation is recorded anywhere; the name has no type locality on the databases.

🔒 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.