Heartleaf Philodendron

How to care for Heartleaf Philodendron

Light

Philodendron hederaceum thrives in bright, indirect light and will produce its largest, most deeply coloured leaves under these conditions. It tolerates low light better than many tropical houseplants, making it suitable for north-facing rooms, though growth will slow noticeably and internodes may elongate. Direct summer sun through glass should be avoided as it can scorch the foliage, but a few hours of gentle morning sun is generally harmless.

Watering

Water thoroughly when the top 2-3 cm of compost have dried out, then allow excess water to drain freely from the pot. Reduce watering frequency in autumn and winter when growth slows. Overwatering is the most common cause of decline; the roots are susceptible to rot in consistently wet conditions. Always use room-temperature water and avoid leaving the pot standing in a saucer of water for prolonged periods.

Soil and potting

A light, well-draining aroid mix is ideal. A suitable home blend can be made from peat-free multipurpose compost, perlite and orchid bark in roughly equal parts by volume. Good aeration around the roots is more important than fertility; compacted or water-retentive compost promotes root rot. Reputable peat-free mixes formulated for aroids are widely available and perform well.

Feeding

Feed with a balanced liquid fertiliser at half the manufacturer's recommended strength once a month during the active growing season from spring through to early autumn. A fertiliser with a roughly equal NPK ratio or one slightly higher in nitrogen suits the plant's foliage-focused growth. Do not feed during winter when the plant is resting, as unused salts can accumulate in the compost and cause root burn.

Humidity and temperature

This species prefers temperatures between 16 and 29 C and should not be exposed to temperatures below 13 C, even briefly, as cold can cause cellular damage to the leaves. It tolerates average household humidity reasonably well but grows more vigorously when humidity is above 50%. Misting is less effective than standing the pot on a tray of damp pebbles or using a humidifier nearby. Keep the plant away from radiators, cold draughts and air-conditioning units.

Repotting

Repot every one to two years in spring when roots are visibly circling the base of the pot or emerging from the drainage holes. Move the plant up by one pot size only, as an excessively large pot holds more moisture than the roots can take up and increases the risk of root rot. Terracotta pots can help regulate moisture levels but plastic pots are perfectly acceptable. After repotting, water lightly and keep the plant out of direct sun for a few days.

Pruning

Prune to control length, improve bushiness or remove damaged and yellowing growth. Cut stems just above a node using clean, sharp scissors or secateurs. Pruning encourages branching and can be done at any time of year, though spring and early summer are the most productive times as the plant actively grows after cutting. Wear gloves if you have sensitive skin, as the sap contains calcium oxalate crystals and can cause irritation on contact.

Is Heartleaf Philodendron toxic?

Common problems

How to propagate

Stem cuttings in water or moist compost

Cut a stem section with at least one node and one or two leaves using clean scissors. Place in a jar of water, keeping the node submerged and the leaves above water, or insert into moist perlite or aroid compost. Roots typically appear within two to four weeks in a warm, bright location.

Layering

While the stem is still attached to the parent plant, wound a node lightly with a knife, wrap it in damp sphagnum moss and cover with clear film to retain moisture. Once roots at least 2-3 cm long have developed, cut the stem below the rooted node and pot up independently.

Where Heartleaf Philodendron comes from

Native to Honduras, Mexico Gulf, Mexico Northeast, Mexico Southwest.

Story and origins

The genus name Philodendron comes from the Greek words 'philos', meaning loving or dear, and 'dendron', meaning tree, giving the sense of 'tree lover' or 'fond of trees'. This is a direct reference to the climbing, tree-dependent growth habit of most species in the genus. The specific epithet hederaceum means 'resembling Hedera', the genus of ivies, and refers to the way the plant climbs and trails in a manner similar to ivy. The common name heartleaf philodendron describes the distinctive cordate, or heart-shaped, outline of the leaves.

Philodendron hederaceum was formally described by the German botanist Heinrich Wilhelm Schott in 1832, though European naturalists had encountered the plant in the Caribbean and Central America considerably earlier. The genus Philodendron itself was first described by Schott in 1829. The species became a popular houseplant in Europe and North America during the late nineteenth and early twentieth centuries, when the fashion for growing tropical foliage plants indoors was at its height. Its tolerance of shade and relatively dry indoor air made it particularly well suited to domestic environments of that era, and it remained one of the most commonly sold houseplants throughout the twentieth century. It carries no particularly notable cultural symbolism in the UK but is widely associated with resilience and ease of care in popular horticulture.

Varieties to know

Philodendron hederaceum 'Brasil'

A popular variegated cultivar with streaks and patches of lime green and yellow through the centre of each dark green leaf.

Philodendron hederaceum 'Lemon Lime'

Produces bright chartreuse to yellow-green foliage throughout, a striking contrast to the typical dark green species form.

Philodendron hederaceum var. hederaceum

The velvet philodendron variety, featuring smaller leaves with a velvety dark green surface and reddish-purple undersides; sometimes sold as Philodendron micans.

Philodendron hederaceum 'Silver Stripe'

Has a central stripe of silvery pale green on each leaf, offering subtle variegation compared to the bolder 'Brasil'.

Fun facts

• Philodendron hederaceum has been in cultivation as a houseplant since at least the Victorian era, making it one of the longest-established indoor tropical plants in Britain.
• In the wild, juvenile plants produce smaller, simpler leaves and grow along the forest floor towards shade, a behaviour called skototropism, before locating a tree host and climbing towards the light with increasingly large leaves.
• Aerial roots produced along the stems are capable of absorbing atmospheric moisture and nutrients, not merely providing physical support.
• The genus name Philodendron is derived from Greek and translates broadly as 'tree lover', a reference to the climbing habit shared by most members of the genus.
• When the plant is actively growing in warmth and good light, individual leaves can reach 30 cm or more in length on mature climbing specimens, significantly larger than the leaves typically seen on standard pot-grown trailing plants.

Heartleaf Philodendron FAQ