Blushing philodendron
The most common mistake with blushing philodendron (Philodendron erubescens) is treating it as a shade plant while overwatering it. This climber survives in partial shade, but dense growth requires light without direct sun and support for its aerial roots.
Climbing structure
In its natural form, this is a largely unbranched climber with aerial roots. It cannot stay upright on its own: the stems attach to a support and gradually climb higher.
The stem is green with reddish internodes; it turns grayer in older plants. The stems are tender and brittle, so sharp bends or tight ties can easily damage them.
- climbing stem with aerial roots
- leathery leaf blade
- leaf stalk with a purple base
- reddish internodes
- brittle young stems
The leaf blade is oval to triangular and dark green, but dark reddish brown when young. This color change often makes the plant recognizable before it develops long stems.
Leaves and color
The leaves reach 18-25 cm long and 13-18 cm wide. The edges may have a pinkish tint, and the 20-25 cm leaf stalk is purple at the base.
Nearly two dozen hybrids have been developed from this species; the most popular is Burgundy, and ‘Red Emerald’ is also sold. These are trade names for hybrid forms, not Ukrainian botanical names for the species.
Young philodendrons often look noticeably different from mature plants. Indoors, they often remain in an intermediate form for a long time: the leaves are already large and leathery, but the plant has not yet developed its full adult structure.
Origin and light
The species is native to Colombia. In the wild, it grows in humid tropical forests on mountain slopes, where the canopy filters the light and the stems have surfaces to cling to.
| In the wild | Indoors |
|---|---|
| Humid tropical forest | Bright spot without direct sun |
| Tree trunks for support | Moss pole or another rough support |
| Filtered light | Partial shade rather than deep shade |
Avoid bright direct sun: the leathery leaf blade is not adapted to prolonged overheating on a windowsill. Deep shade, meanwhile, slows growth and lengthens the internodes.
Watering and potting mix
Water regularly, especially in spring and summer. Let the top layer of potting mix dry rather than watering by the calendar: the roots need moisture, but must not sit in water.
- allowing the top 2-3 cm of potting mix to dry
- holes to drain excess water
- a loose mix around the roots
- no water left in the cachepot after watering
- reduced watering in winter
Letting the root ball dry out weakens the climber, but constantly wet potting mix is more dangerous: overwatering can cause root rot. Drainage and moderation therefore matter more than frequent small top-ups.
Support and aerial roots
The plant uses its aerial roots to anchor itself to a support, not to draw nutrients from the air. Without support, the stems fall sideways, stretch out, and break more easily.
A rough natural surface or moss-covered support works better for this climber than a smooth trellis. You can wrap the support in a layer of sphagnum about 3 cm thick: damp moss gives the roots a surface they can grip more easily.
Ties should guide the stem, not squeeze it. Position soft ties so that the internodes and leaf stalks do not rub against the support.
Feeding and seasonal care
Feed regularly during the growing season, from spring to fall. Feed very large specimens once a week and others once every two weeks; in winter, once a month is enough.
Winter care is more restrained: reduce watering and keep the temperature above +12 °C. This is not full dormancy, but growth slows, so the plant uses less water and fewer nutrients.
If you maintain the summer watering and feeding schedule in winter, the potting mix stays wet longer. Under these conditions, the root system is more likely to suffer from a lack of air.
Common problems
The combination of low light and heavy watering causes the most rapid harm: the plant cannot use the water quickly enough, the potting mix compacts, and the risk of root rot increases.
- yellowing leaves after overwatering
- a soft stem base with root rot
- dry leaf edges after drying out
- spider mites in dry air
- scale insects on leaf stalks and stems
You can mist the leaves or wipe them with a damp cloth: this removes dust and helps you spot pests earlier. Check the undersides of the leaves, the leaf stalks, and the areas around the nodes particularly carefully.
Propagation and flowers
Indoors, the plant is propagated from tip and stem cuttings. Use a section of stem with a node: new roots and the next shoot develop from the nodes.
The inflorescence is typical of aroids: a spadix surrounded by a spathe. The spathe is dark purple and up to 15 cm long, while the spadix is white and fragrant.
Indoors, flowering is not the main sign of a healthy plant. Its appeal more often comes from its climbing form, healthy leaf stalks, and consistent color in the young leaves.
- Light
- bright light or partial shade
- Temperature
- +18…+29 °C
- Watering
- regular
- Soil
- loose, well-drained
- Difficulty
- moderate
- Cats and dogs
- mildly toxic
- Leaves indoors
- 18-25 × 13-18 cm
- Native range
- Colombia
Care
This is a climbing aroid: it needs support, indirect light, and consistent moisture without standing water. It reacts worst to the combination of a dark spot and wet potting mix.
- Light
- Provide bright light or partial shade. It needs bright indirect light. Avoid direct sun; growth weakens in deep shade.
- Temperature
- Keep at +18…+29 °C. This is the range for active growth. In winter, keep the temperature above +12 °C.
- Watering
- Water when the top layer dries. Water when the top 2-3 cm of potting mix dries. Standing water around the roots is harmful.
- Soil
- Use a loose, well-drained mix. The potting mix must let air and water through. The pot must have holes to drain excess water.
- Feeding
- Feed from spring to fall. Feed large specimens once a week and others once every two weeks; in winter, feed once a month.
- Support
- Provide a sphagnum moss pole. Aerial roots attach more easily to a rough surface. A layer of sphagnum about 3 cm thick supports their growth.
- Leaves
- Mist or wipe the leaves. Clean the leaves periodically with a damp cloth. This makes scale insects or spider mites easier to spot.
Botany
- Family
- Araceae
- Genus
- Philodendron
- Species
- Philodendron erubescens
- Author and year
- K.Koch & Augustin
Blushing philodendron belongs to the family Araceae and has the climbing habit typical of many philodendrons. Its stems bear aerial roots that anchor the plant to a support without parasitizing it.
The species comes from mountainous regions of Colombia. This explains its indoor needs: indirect light, warmth, regular moisture, and a potting mix that does not hold standing water.
The inflorescence is not a single ‘flower’ but a spadix and spathe, the characteristic structure of aroids. In this species, the white, fragrant spadix contrasts with the dark purple spathe.
Frequently asked questions
- Will the plant grow as a bush without support?
- No, it is a climber. It needs support; otherwise, the stems will fall sideways and break more easily.
- What light does it need?
- Keep it in a bright spot or partial shade. Avoid direct sun; deep shade slows growth.
- How often should I water it?
- Water when the top 2-3 cm of potting mix dries. Water must not collect in the pot or cachepot.
- Is it dangerous to cats and dogs?
- Yes, the plant is mildly toxic to cats and dogs. Its sap can irritate mucous membranes if chewed.
- How do I propagate it from a cutting?
- Use tip or stem cuttings with a node. New roots develop from the node.
