Philodendron alternans

A Philodendron of the Atlantic Forest of Rio de Janeiro state, described by Schott in 1856. Records are from humid lowland and submontane forest near the coast, a climate with hot wet summers and cooler, drier winters.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restClimber

Where it grows wild

Records come from Atlantic Forest in the lowlands and lower slopes of the Serra do Mar in Rio de Janeiro state. Habit is not documented in sources we reached; we assume a hemiepiphytic or epiphytic Philodendron of forest interior.

Few records carry elevations; the climate sites are at 284–864 m.

Brazil

🔒 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.