Hoya fraterna

Hoya fraterna, described by Blume in 1849 from Java, is a large, thick-leaved climber of upland forest in Java and Sabah, long grown by collectors for its big glossy leaves and tan-to-orange umbels. It is a robust, forgiving plant that likes a little more light and slightly cooler nights than the lowland hoyas.

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

A heavy epiphytic to scrambling vine of humid hill and lower montane forest, climbing into the mid-canopy and along forest edges where it gets more light than a floor-dwelling hoya.

Climate sites are at 432 m in Borneo and 905 m in Java; no wild record carries an elevation, but the species is generally regarded as an upland plant.

JavaSabahBorneo

🔒 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.