Philodendron mexicanum
Mexico through Central America to W. Colombia; wet tropical forest
First described by Engl..
Mature leaves large (to ~60 cm), three-lobed/spear-shaped, glossy green above with reddish or bronze undersides; juvenile leaves simple and lance-shaped.
Evergreen climber; develops dramatically lobed adult foliage with a moss pole and good light.
Genus from Greek 'philo' (love) + 'dendron' (tree), referring to many species' habit of climbing trees. Epithet 'mexicanum' refers to Mexico, part of its native range.
Philodendron mexicanum (Engl.) ranges from Mexico through Central America to western Colombia. An evergreen climbing vine, it shows strong heterophylly: juvenile leaves are simple and lanceolate, while mature leaves become large, spear- to trilobed-shaped with a glossy upper surface and often a coppery or reddish underside.
Give it a moss pole and bright indirect light to bring out the distinctive lobed adult leaves. Keep an airy mix evenly moist but not soggy, with warmth and moderate-to-high humidity. Wipe leaves to keep the glossy surface clean.
Airy aroid mix (40% orchid bark, 40% coco coir, 20% perlite). Repot every 18–24 months in spring; pair with a moss pole.
Monthly during growing season (spring–summer)
- Root rot in wet mix; leaves stay juvenile/unlobed without a support to climb; spider mites in dry air; brown tips from low humidity.
- It shows dramatic heterophylly — plain lance-shaped juvenile leaves transform into big spear-/three-lobed adult leaves.
- Mature leaves often have a striking coppery or reddish underside.
- Despite the name, its range runs well beyond Mexico, south through Central America to western Colombia.