Philodendron Heart Leaf Neon 4”

Heartleaf Philodendron |

Philodendron hederaceum

Heartleaf Philodendron, Philodendron hederaceum, is a tropical climbing aroid native to the Americas. It is known for its smooth, deep green, heart-shaped leaves and long, flexible vines. It is often considered a simple beginner plant, but the small trailing plant commonly grown indoors is only its juvenile form. Given the opportunity to climb and mature, Heartleaf Philodendron can become a much more substantial plant with considerably larger foliage.

Heartleaf Philodendron is naturally a climber. Its stems produce aerial roots that allow it to attach to trees and other surfaces as it grows upward. Indoors, it can be allowed to trail from a shelf or hanging basket, but a pole, plank or other vertical support gives it the opportunity to grow more like it does naturally. As an established vine climbs, successive leaves can become larger and the stems more substantial. When grown strictly as a trailing plant, the leaves generally remain smaller and more juvenile.

For natural light, start Heartleaf Philodendron approximately 1–3 feet from an east-facing window or 2–4 feet from a west-facing window. Heartleaf Philodendron prefers approximately 400–800 foot-candles at the leaves. Foot-candles simply tell you how much light is actually reaching your plant. Heartleaf Philodendron can tolerate lower-light conditions, but tolerating lower light does not mean that is where it will grow its best. Longer spaces between leaves, smaller foliage and slower growth can develop when the plant isn’t receiving enough useful light. Window direction and distance are starting points because season, trees, overhangs, window size, screens and glass can all change the amount of light reaching the plant.

If you’re using grow lights, choose a 5000–6500K fixture and aim for the same approximately 400–800 foot-candles at the foliage. Kelvin tells you the color of the light, not its strength. Foot-candles tell you how much light is actually reaching the plant. There is no universal distance between the fixture and the plant because grow lights vary considerably in output and coverage. With long trailing vines or a plant climbing a tall support, check different areas of the plant because the entire vine may not be receiving the same amount of light.

Water when your plant needs watered. Allow the root zone to use a good portion of its available moisture before thoroughly watering again. Heartleaf Philodendron handles some dryback well, but there is no benefit to repeatedly pushing it into a severe wilt. How quickly the plant uses water changes with light, temperature, root development, pot size and the amount of foliage it is supporting. An airy, well-draining aroid mix allows you to water thoroughly while maintaining oxygen around the roots.

Read the vine as it grows. Longer spaces developing between leaves, progressively smaller new foliage or vines stretching strongly toward a window are reasons to check how much useful light the plant is receiving. If you’re growing it vertically, watch the aerial roots and the size of each successive leaf. Aerial roots beginning to attach and new leaves becoming progressively larger are signs that the plant is settling into its climbing growth habit.

Success can look different depending on how you choose to grow it. A trailing Heartleaf Philodendron should produce steady vines with firm green leaves and healthy branching. A climbing plant should begin attaching to its support and producing increasingly substantial foliage as it matures. Understanding that this familiar trailing houseplant is actually a climber gives you the choice to keep it small and cascading or give it the conditions to show you what a mature Heartleaf Philodendron can become.