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Pink Princess Philodendron (Philodendron erubescens)

Pink Princess Philodendron

Philodendron erubescens · Araceae

Moderate Toxic to pets

Philodendron erubescens is a climbing aroid native to the rainforests of Colombia and other parts of South America. It is best known in cultivation as the 'Pink Princess' selection, which produces striking variegated leaves displaying patches of deep burgundy, dark green, and pale to vivid pink. The pink colouration results from a lack of chlorophyll in affected leaf sectors, a trait that is inherently unstable and can revert under certain growing conditions.

☀ Light
Bright, indirect light
💧 Water
Water when top 3-5 cm of soil is dry
🌡 Temp
18-29°C
💦 Humidity
50% or above preferred
🌿 Soil
Well-draining, chunky aroid mix
🍽 Feeding
Balanced liquid fertiliser every 2-4 weeks in growing season

Photo: Alialb / CC BY-SA 4.0 via Wikimedia Commons

How to care for Pink Princess Philodendron

Light

Pink Princess Philodendron requires bright, indirect light to maintain its variegation. Direct sun, particularly from a south-facing window in summer, can scorch the leaves, while insufficient light causes the plant to produce predominantly dark green leaves with little or no pink. An east- or west-facing windowsill, or a position set back from a south-facing window with sheer curtains, generally produces the best balance of growth and variegation. Supplemental grow lights can be used successfully in darker rooms, keeping the light source 20-30 cm from the foliage on a 12-14 hour cycle.

Watering

Water thoroughly, allowing excess to drain freely from the pot, then wait until the top 3-5 cm of the potting mix has dried before watering again. Overwatering is the most common cause of decline; the plant is more tolerant of slight underwatering than of consistently wet conditions. Reduce watering frequency in autumn and winter when growth slows. Always use room-temperature water, and if your tap water is heavily chlorinated, allowing it to sit overnight or using filtered water is advisable.

Soil and potting

A loose, well-aerated aroid mix is essential to prevent root rot. A suitable mix can be made by combining standard peat-free houseplant compost with perlite, orchid bark, and a small amount of horticultural charcoal in roughly equal parts. The goal is a substrate that retains adequate moisture for root uptake but drains quickly and does not compact. Avoid dense, peat-heavy composts, which retain water excessively and restrict airflow around the roots.

Feeding

Feed with a balanced, water-soluble fertiliser (such as a 20-20-20 or similar NPK ratio) diluted to half strength every two to four weeks during the growing season from spring through early autumn. Avoid feeding in winter when the plant is not actively growing, as unused fertiliser salts can accumulate and damage roots. Some growers apply a lower-nitrogen fertiliser periodically to encourage leaf variegation, though evidence for this is largely anecdotal; consistent bright light is the more reliable factor.

Humidity and temperature

As a tropical rainforest plant, P. erubescens prefers humidity levels of 50% or higher. In typical UK homes, ambient humidity often falls below this, especially in winter when central heating is running. A humidifier placed nearby is the most effective solution; grouping plants together or placing the pot on a tray of moist pebbles can offer a modest benefit. The plant performs best between 18-29°C and should be kept away from cold draughts, open windows in winter, and heat sources such as radiators, which dry the air and can damage foliage.

Repotting

Repot every one to two years, or when roots begin to emerge from the drainage holes or circle visibly at the soil surface. Choose a pot only one size larger (2-3 cm wider in diameter) than the current one, as excessively large pots hold surplus moisture and increase the risk of root rot. Terracotta pots aid aeration and drying of the substrate. Spring is the ideal time to repot, allowing the plant to establish before the main growing season. Handle the roots gently and avoid disturbing them more than necessary.

Pruning

Pruning is used to manage size, encourage branching, and remove any fully reverted (entirely green or entirely pink) stems. Use clean, sharp scissors or secateurs sterilised with isopropyl alcohol before use. Cutting just above a node encourages new growth from that point. Stems that have reverted to all-green growth should be removed promptly, as they grow more vigorously than variegated stems and can come to dominate the plant. Fully pink (achlorophyllous) stems should also be removed as they are unable to photosynthesise and will eventually die back.

Is Pink Princess Philodendron toxic?

Pets: Toxic. Philodendron erubescens contains insoluble calcium oxalate crystals throughout all parts of the plant. Ingestion by cats or dogs causes oral irritation, excessive drooling, vomiting, and difficulty swallowing. It is listed as toxic to cats and dogs by the ASPCA. Seek veterinary advice promptly if ingestion is suspected.
People: All parts of the plant are toxic if ingested and the sap can cause skin and eye irritation. Keep out of reach of young children and wash hands after handling.

Common problems

Yellowing leaves
Likely cause: Overwatering or waterlogged soil leading to root rot  Fix: Allow the soil to dry out appropriately between waterings, improve drainage, check roots for rot and trim any affected sections, then repot into fresh well-draining mix if necessary.
Loss of pink variegation; new leaves emerging entirely green
Likely cause: Insufficient light or natural reversion of the unstable variegation  Fix: Move the plant to a brighter position with more indirect light. Prune back any fully reverted stems to a node showing variegation to encourage patterned new growth.
Brown, crispy leaf edges or tips
Likely cause: Low humidity, cold draughts, or fluoride/salt accumulation in the soil  Fix: Increase humidity with a humidifier, relocate away from draughts and heat sources, and flush the potting mix thoroughly with water periodically to leach accumulated salts.
Soft, blackened stem at the base
Likely cause: Root or stem rot, typically caused by Pythium or Phytophthora following prolonged overwatering  Fix: Remove affected tissue back to healthy growth, allow cut surfaces to dry, treat with a fungicide if desired, and propagate from any healthy stem sections. Discard heavily infected plants and potting mix.
Small clustered insects on stems and undersides of leaves
Likely cause: Infestation by spider mites, mealybugs, or thrips  Fix: Isolate the plant immediately. Remove pests by hand where possible, then treat with insecticidal soap spray, neem oil solution, or a systemic insecticide appropriate for houseplants. Repeat treatments weekly for at least a month.
Leaves developing large pale or bleached patches
Likely cause: Sunscorch from direct sunlight, particularly through glass  Fix: Move the plant out of direct sun to a bright but shaded position. Damaged leaves will not recover but new growth should emerge unaffected.

How to propagate

Stem cutting in water or moist substrate

Cut a stem section bearing at least one node and one leaf, using sterilised secateurs. Place the node in a jar of clean water or insert it into moist perlite or sphagnum moss, keeping it warm and in bright indirect light until roots of 2-3 cm develop, then pot into aroid mix.

Air layering

On an established stem, make a shallow upward-angled cut just below a node, pack the wound with moist sphagnum moss, and wrap tightly in clear polythene film sealed at both ends. Once visible roots have filled the moss ball (typically four to eight weeks), sever the stem below the root mass and pot it up.

Where Pink Princess Philodendron comes from

Native to Colombia.

Story and origins

The genus name Philodendron derives from the Greek words 'philos' meaning loving and 'dendron' meaning tree, referring to the climbing habit of many species in the genus, which grow up and around trees in their native habitats. The species epithet erubescens comes from the Latin 'erubescere', meaning to blush or become red, alluding to the reddish colouration of the new leaf sheaths, stems, and undersides of young leaves, which is a characteristic of the species even in non-variegated forms.

Philodendron erubescens was formally described by the botanist Karl Koch and Augustin Pyramus de Candolle's son Alphonse de Candolle in the mid-nineteenth century, based on specimens collected from Colombia. The species was cultivated as an ornamental foliage plant in European glasshouses during the Victorian era, prized for its rich coloured stems and large glossy leaves. The 'Pink Princess' selection, characterised by pink chimeric variegation, is believed to have originated in tissue culture or selective breeding programmes in Florida, United States, in the 1970s, and it rose to extraordinary international prominence during the houseplant boom of the early 2020s, becoming one of the most sought-after and heavily counterfeited houseplants in the market.

Varieties to know

Pink Princess (select clone)

The most widely traded form, selected for high contrast between dark burgundy-green and bright pink variegation; the 'Pink Princess' name is a trade descriptor rather than a formal cultivar name.

Philodendron erubescens 'White Princess'

A white-variegated counterpart that produces cream or white patches rather than pink; sometimes sold as a distinct plant but belongs to the same species complex.

Philodendron erubescens 'White Knight'

Features white variegation similar to White Princess but with distinctly dark brownish-purple stems, helping to distinguish it from White Princess.

Philodendron erubescens 'Royal Queen'

A non-variegated cultivar selected for deep, near-black burgundy foliage; grown for dramatic foliage colour rather than variegation.

Fun facts

Pink Princess Philodendron FAQ

Why are my Pink Princess Philodendron's new leaves coming out all green with no pink?
This is most likely due to insufficient light. Move the plant to a brighter position with more indirect light. It can also be caused by natural reversion of the unstable variegation; pruning back to a node that previously produced variegated leaves can encourage patterned growth to resume.
How do I stop my Pink Princess from reverting?
There is no guaranteed method, as the variegation is inherently unstable. Providing consistently bright indirect light gives the best chance of maintaining variegation. Promptly remove any entirely green stems to prevent them from outcompeting the variegated growth.
Is Pink Princess Philodendron safe to keep around cats or dogs?
No. Philodendron erubescens is toxic to both cats and dogs due to calcium oxalate crystals in all plant tissues. Ingestion causes oral pain, drooling, and vomiting. Keep the plant out of reach of pets and contact a vet immediately if ingestion occurs.
How often should I water my Pink Princess Philodendron?
There is no fixed schedule; water when the top 3-5 cm of potting mix has dried out. In a warm, bright position this may be every five to seven days in summer, but can extend to every ten to fourteen days or more in winter. Always check the soil before watering rather than following a calendar.
Can I grow Pink Princess Philodendron in a north-facing room?
A north-facing room is generally too dim for this plant to thrive. It will survive at low light levels but will produce little new growth and the variegation will greatly diminish. A supplemental grow light is strongly recommended if a brighter position is not available.
Why does my Pink Princess have fully pink leaves with no green?
Fully pink leaves lack chlorophyll and cannot photosynthesise. While they are visually striking, they draw energy from the rest of the plant without contributing to it. The stems producing such leaves should be pruned back to encourage growth that includes at least some green tissue.
How can I tell if my plant is a genuine Pink Princess Philodendron and not a painted fake?
Genuine Pink Princess variegation is present throughout the leaf tissue and develops on new leaves as they unfurl. On painted or dyed fakes, the colour sits only on the leaf surface and will fade, flake, or wash off. Genuine variegation also occurs on stems and leaf sheaths, not solely on the leaf blade. Buying from a reputable specialist nursery reduces the risk of purchasing a counterfeit.