This plant thrives best in bright, indirect light but can also tolerate low light. The plant will grow faster with more light. Keep out of direct sunlight.
Allow the soil to dry before watering, about every 1-2 weeks. If your plant is receiving more light, increase your watering schedule. If the leaves are turning yellow that means you are overwatering.
Standard houseplant temperatures are ideal for this plant, around 65-75°F. Keep away from cold drafts and avoid temperatures lower than 50°F. Standard household humidity is fine for this plant but increase humidity to grow larger leaves.
The leaves can grow to be about 2"-4" big while the stems themselves can reach lengths of over 10' long over time. Give them plant a diluted fertilizer once a month in spring and summer to encourage growth. Fertilize every other month in fall and winter.
Repot the plant to a larger pot when the roots have filled up the current pot size. This plant prefers to be somewhat root bound, so choose a new planter that is about one or two sizes larger and filled with fresh, well-draining potting soil.
Philodendrons are extremely easy to propagate through cuttings. Using sharp scissors, cut off a piece of branch that has a few nodes and a few leaves on it. But the cutting into a cup of water until the roots grow about 2" long. Plant the rooted cutting into a pot using well-draining soil.
It is toxic to humans and pets. May cause oral irritation or vomiting if ingested.
About the Heartleaf Philodendron