Hoya clemensiorum

A Bornean hoya grown for its huge, stiff, leathery leaves, 15-35 cm long, patterned with dark brownish-green or purple veins on an olive-green background. It climbs trees or rocks in lowland to lower montane rainforest and along forest edges by rivers, and bears hanging umbels of 20-40 ochre to olive-tan flowers with a cream corona and citrus or spicy scent. In cultivation it wants warm, humid, bright-filtered conditions and room to climb.

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

No rest periodGrows on trees (epiphyte)

Where it grows wild

It grows in primary lowland to lower montane rainforest and at riverine forest edges, climbing tree trunks as an epiphyte or growing over rocks as a lithophyte. The neotype was collected at Tenompok on Mount Kinabalu, a lower montane forest site.

It is reported from near sea level to about 1500 m on Mount Kinabalu. The single GBIF record near Kinabalu (6.15 °N, 116.57 °E) has no elevation.

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.