Philodendron hederaceum var. oxycardium (Philodendron scandens)

The green heartleaf’s Central American range

From Mexico through Honduras, Philodendron hederaceum var. oxycardium climbs through wet tropical forest and roots along trunks and other surfaces.

Care for supported climbing aroids

• Growth: Trailing is possible, but a vine that attaches to a moss pole produces larger, more mature leaves.
• Light: Medium to bright indirect light gives the fullest growth. The green heartleaf can acclimate to lower light, but it grows more slowly and produces smaller, more widely spaced leaves.
• Humidity and airflow: It handles average indoor humidity, although moderate humidity helps tender leaves open. Air circulation remains useful around a thick curtain of vines.
• Substrate: A light, aerated mix that retains some water without staying saturated suits its adaptable roots.
• Feeding: Use a balanced fertilizer during active growth at a strength matched to the amount of light the plant receives. Reduce feeding when growth slows.

Green heartleaf philodendron: interpreting common symptoms

• One old leaf yellows or several leaves change: A single oldest leaf can yellow while roots and newer growth remain healthy. Rapid change across several leaves calls for checks of cold, drought, saturated roots and fertiliser salts; correct the factor supported by pot moisture and root firmness.
• Several leaves fall after an environmental change: Cold, a sharp change in light, a dry interval or root stress can cause leaf or sheath loss after the event. Check for firm roots and active new growth; continuing decline with soft tissue needs a root and stem inspection.
• Pest signs: Silver scars and black specks suggest thrips; fine stippling or webbing suggests mites; waxy colonies and honeydew point to mealybugs, scale or aphids. Remove visible pests, then treat nodes and lower leaf surfaces with a houseplant control intended for that pest.
• Long bare vines: Weak light, poor root health or lack of support can produce long gaps and small leaves. Improve filtered light and climbing contact, and root healthy node cuttings if a bare stem will not refill.

Philodendron hederaceum var. oxycardium (Philodendron scandens) is toxic to pets

• Philodendron hederaceum var. oxycardium (Philodendron scandens) is toxic to cats and dogs.
• Chewing releases insoluble calcium oxalate crystals, which can cause immediate mouth pain, drooling and difficulty swallowing.
• Contact a veterinarian promptly after suspected chewing, especially if swelling or breathing problems occur.

Love of trees, ivy-like growth, climbing stems and a pointed heart

Hederaceum is Latin for ivy-like and refers to the plant’s trailing and climbing habit. Philodendron combines Greek philein, meaning “to love,” with dendron, meaning “tree.” The epithet scandens means climbing. The epithet oxycardium combines Greek oxys, sharp or pointed, with kardia, heart, and describes a pointed heart shape.