Hoya cardiophylla

Hoya cardiophylla is a Philippine hoya described by Merrill in 1920, named for its heart-shaped leaves, and grown by collectors for the neat cordate foliage and small waxy flowers. It is a warm, humid forest climber; the wild records span sea level to a Mindanao mountain, so it tolerates a wider temperature range than most lowland Philippine species.

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

An epiphytic climber in humid Philippine forest. The three wild records sit at sea level in Samar and Leyte and at about 2,900 m on the Kitanglad range in Bukidnon, Mindanao; the high record is probably a coarse georeference, but the species clearly occurs from the lowlands into montane forest.

Records from 0 to 50 m and one at about 2,900 m; the typical range is likely lowland to mid-montane.

PhilippinesSamarLeyteMindanao

🔒 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.