Name: Philodendron pastazanum
Origin / Habitat: This species is native to Ecuador and grows in humid tropical forests. It develops a creeping stem or rhizome that spreads along the forest floor.
Description & Notes: Philodendron pastazanum is especially popular for its large, heart-shaped leaves with prominent venation. The plant grows terrestrially or hemiepiphytically, with a horizontally creeping rhizome, and therefore needs a wider rather than deeper planter.
Light: Bright to partially shaded, with plenty of indirect light. Avoid intense direct midday sun.
Temperature: Warm to moderate, ideally around 20–28 °C. Avoid temperatures that remain below about 16 °C.
Water & Humidity: Keep the substrate evenly slightly moist, but allow the top layer to dry out a little between waterings. Avoid waterlogging. Higher humidity of around 60–80% supports the development of large, healthy leaves; also ensure good air circulation.
Substrate: A loose, very airy aroid mix made from coarse bark, coco chips or coir, and mineral components such as perlite or pumice. A wide pot or shallow planter provides ample room for the creeping rhizome.