Philodendron oxycardium

The heartleaf philodendron, now treated as Philodendron hederaceum var. oxycardium, a climbing aroid of humid lowland forest from eastern Mexico to Honduras. One of the most common houseplants, it does best warm and humid with bright shade and something 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 Dappled lightDLI and PPFD in Plantistry

No rest periodClimber

Where it grows wild

Hemiepiphytic climber on tree trunks in humid lowland and foothill evergreen forest, rooting into bark.

Recorded at 7–580 m, median 320 m; two climate sites sit at 900–1100 m.

MexicoVeracruzOaxacaHonduras

🔒 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.