Heartleaf Philodendron / Sweetheart Plant
Philodendron hederaceum
description
Heartleaf Philodendron is a forgiving tropical vine with glossy heart-shaped green leaves.
benefits
- Fast-growing
- Suitable for containers
warnings
- Toxic to cats
- Toxic to dogs
How to care for Heartleaf Philodendron
sunlight
In tropical forests, Heartleaf Philodendron climbs and trails beneath the canopy, receiving filtered light rather than harsh sun. Give it a bright spot with indirect light for fuller growth and larger leaves.
Bright indirect light
Place near an east or north window, or a few feet back from a bright south or west window. Sheer curtains help soften strong afternoon rays, which can scorch or fade the leaves.
Lower light - tolerated
It will stay alive in lower light but grows more slowly, with longer gaps between leaves. Move it closer to a window if the stems become sparse; variegated forms need brighter indirect light to keep their pattern.
watering
Spring to early fall
Check about once a week and expect to water roughly every 7-10 days in bright, warm conditions. Water slowly until it drains, then empty the saucer. Wait longer if the pot still feels heavy or the soil is moist below the surface.
Fall and winter
Growth slows in cooler, lower-light rooms, so watering is often needed about every 2-3 weeks. Let the top 2 inches dry and check deeper soil before watering, especially in a large pot.
Watering needs shift with light, temperature, humidity, pot size and material, soil mix, and active root growth. Dry, crisp leaf edges can mean it stayed dry too long, while yellowing leaves and persistently damp soil usually mean too much water.
humidity
Heartleaf Philodendron comes from warm, humid tropical forests, but it adapts well to typical indoor air. It will look its best with moderate humidity and away from drying heat or AC.
Acceptable indoors
Keep humidity above 40% when possible. Air that is too dry can cause brown, crisp leaf edges, curling, or smaller new leaves.
Preferred range
Aim for the middle of this range during winter heating or in very dry homes. Average humidity is usually fine if the plant is otherwise growing well.
- Run a humidifier nearby for the most reliable increase.
- Group plants together and keep them away from radiators, heating vents, and air conditioners.
temperature
Ideal range
Winter minimum
As a tropical forest vine, Heartleaf Philodendron prefers steady indoor warmth. Growth slows in cooler rooms, and cold can cause yellowing or soft, damaged leaves.
nutrition
March - August
Feed about once a month while the vine is actively making new leaves, using a balanced liquid houseplant fertilizer diluted to half strength. Apply it to already moist soil. In autumn and winter, pause feeding unless it is still growing steadily in bright light.
Nitrogen
Nitrogen supports the lush green leaves and steady vine growth. A balanced fertilizer used at a gentle strength provides enough without pushing soft, weak growth.
soil
Airy, moisture-retentive soil
Heartleaf Philodendron likes roots that stay lightly moist but still get plenty of air. Use a quality indoor potting mix loosened with perlite and orchid bark or coco chips, in a pot with drainage holes.
pH 5,5 - 6,5
This is slightly acidic soil, which suits this tropical vine. Most indoor plant mixes fall close to this range, so choose a fresh, peat- or coco-based mix rather than trying to adjust pH at home.