Origin: South America
Height: Climbs or trails to 4 ft (1.2 m) or more.
Light: Moderate to bright light. Small leaves or long spaces between leaves show that the plant is not getting enough light. Move heartleaf philodendron plant to a brighter location, but not into direct sun which can scorch its leaves. It thrives under fluorescent light, too, making it an ideal office plant.
Water: Keep soil lightly moist spring through fall. Allow surface to dry out between waterings in winter. Yellow leaves are caused by overwatering. Always use tepid water for your houseplants because cold water is a shock to these tropical natives.
Humidity: Tolerant of dry air, but likes humidity. Try to maintain 40% relative humidity or higher. Check out these easy ways to raise the humidity around your tropical plants. Brown leaf tips are a symptom of dry air.
Temperature: Average room temperatures (65-75°F/18-24°C). Heartleaf philodendron will tolerate a minimum of 60°F/16°C.
Soil: Peat moss-based mix, such as African violet potting mix.
Fertilizer: Feed monthly spring through fall with a balanced liquid or water-soluble fertilizer, diluted by half. Don't feed in winter, when growth is slower.
Propagation: Take 3-4 in/7-10 cm-long stem tip cuttings (each with at least 3 leaves attached) in spring or early summer. Cut just below a leaf node (the place where the leaf is attached to the stem). Nodes contain cells that will develop new roots. Philodendron roots easily in water or moist soil.