Identity & taxonomy
- Scientific name
- Philodendron gloriosum André
- Family
- Araceae
- Genus
- Philodendron
- Order
- Alismatales
- IUCN status
- Not Evaluated (NE)
- Wikidata
- Q15567528
- Philodendron gloriosum André var. gloriosum
- Glorious philodendronen
- Velvet leaf philodendronen
- Velvet heart philodendronen
- Philodendron gloriosumsv
- Philodendron gloriosumno
- Philodendron gloriosumda
- Philodendron gloriosumfi
- Glorienphilodendronde
Colombia — terrestrial in lowland to lower-montane forest understorey, primarily Antioquia and Chocó departments
How to identify it
Growth habit. Terrestrial rhizomatous philodendron — one of relatively few in the genus that crawls rather than climbs. The thick fleshy rhizome creeps along the soil surface (NOT under it; partially burying the rhizome causes rot) producing one new leaf at each node, with a 5–15 cm internode spacing. The plant grows in one direction along the planter; new leaves and roots emerge from the advancing growing tip while older leaves at the back gradually senesce. Cannot be staked or pole-trained — the rhizome simply ignores vertical supports.
Leaves. Large heart-shaped (cordate) leaves 30–50 cm long and 20–35 cm wide on petioles 30–60 cm long, held semi-erect. The diagnostic combination is matte dark green velvet texture (hairless but with surface microstructure that scatters light) and bright silver-white veins — a prominent central midrib and pinnate lateral veins that run from midrib to leaf margin in clean parallel lines. The underside is paler matte green. New leaves emerge with a pinkish or coppery flush and harden to dark green within weeks.
Flowers. Aroid spathe-and-spadix; rare indoors. The spathe is white-cream tinged with deep red-purple at the base.
- Terrestrial CRAWLING rhizome on the soil surface — does not climb.
- Large heart-shaped velvet leaves 30–50 cm long.
- Matte dark green ground colour (not glossy) with bright silver-white veins.
- Long thick petioles (30–60 cm), much longer than typical philodendrons.
- Slow growth — new leaf every 4–8 weeks under good conditions.
Commonly confused with
Velvet anthurium
Genuinely similar leaf at a glance — heart-shaped velvet leaf with white veins. Differences: clarinervium has more cordate (almost circular-with-lobes) leaves, denser white venation network, and a self-heading rosette habit (does not crawl). Family Araceae same as gloriosum but different genus entirely.
Mamei philodendron / Quilted Silver Leaf
Similar crawling habit and heart-shaped leaf shape. Difference: mamei has glossy quilted leaves with silvery patches between the veins, not velvet texture. Less common in Nordic trade.
Black Gold philodendron
Velvet texture but ELONGATED narrow leaves (almost arrow-shaped) with bronze-green colour and golden venation. Climbing/vining habit, not crawling. Different visual identity but often confused with gloriosum in plant ID app queries.
Magnificent anthurium
Larger leaves than clarinervium with more pronounced velvet texture. Similar visual but again Anthurium genus, self-heading habit, and grows from a stem above ground rather than a creeping rhizome.
Care
Light
Bright indirect — east window or 1–2 m back from a south window.
Place 1–2 m back from a south or west window with a sheer curtain, or directly in front of an east window. Direct sun scorches the velvet surface (which holds heat) and bleaches the silver venation. Below 8,000 lux the plant produces smaller leaves with weaker venation and grows extremely slowly. In Nordic winters most apartments fall below the maintenance threshold; a full-spectrum LED at 12 hours/day from October through March prevents the worst of the seasonal slow-down.
Seasonal: Move closer to windows in winter; pull back in summer.
Water
When the top 2–3 cm of soil is dry — every 7–10 days.
Water thoroughly until water runs from the drainage holes, then empty the saucer. Allow the top 2–3 cm to dry between waterings. Gloriosum is moderately rot-prone — the thick rhizome holds water and rots if kept soggy. Use room-temperature filtered or rainwater; tap water mineral buildup damages the velvet leaf surface over time.
Seasonal: Reduce frequency to every 10–14 days in winter.
Soil
Chunky aroid mix in a long shallow planter.
Use a chunky aroid mix: 1:1:1 potting soil, coarse perlite, and orchid bark. The mix should drain freely. The classic gloriosum hack is the planter shape: use a long shallow rectangular or oval planter (like a window-box) rather than a deep round pot. The rhizome crawls horizontally and runs out of space in a deep narrow pot within months. A 60 cm long × 20 cm wide × 15 cm deep planter accommodates 2–3 years of growth before needing repotting.
Humidity
60–80 % preferred — struggles below 50 %.
The velvet texture loses its sheen at low humidity, and leaves develop crispy edges below 50 %. Run a humidifier near the plant during winter heating season. A glass cabinet or grow tent provides the most stable environment for this species.
Temperature
18–27 °C; damage below 15 °C.
Tropical species; does not tolerate cold draughts or temperatures below 15 °C. Keep clear of unheated entryways, away from cold glass on winter nights, and away from radiator drafts that desiccate the velvet leaves.
Fertilizer
Half-strength balanced liquid feed every 4–6 weeks in growing season.
A balanced liquid fertiliser (NPK 10-10-10 or 20-20-20) at half label rate, every 4–6 weeks from April through September. Slightly higher phosphorus supports rhizome and root development. Flush the soil thoroughly every 2–3 months to prevent salt buildup.
Seasonal: No feeding from October through March.
Pruning
Remove old yellowing leaves; otherwise minimal.
Cut yellowing leaves cleanly at the petiole base with sterile scissors. The rhizome itself does not branch readily under most indoor conditions, so pruning is minimal. If you want to propagate, cut the rhizome between nodes with a sterile knife (see propagation). Wear gloves — the sap is irritating.
Repotting
Every 2–3 years in spring, into a longer planter as the rhizome advances.
Transplant when the rhizome reaches the front of the planter. Spring is best, just as new growth resumes. Place the rhizome on the soil surface (do not bury it) and bed it in by adding mix around but not over the rhizome itself. The growing tip should face the empty end of the new planter. Water sparingly for 2–3 weeks while disturbed roots recover.
Rhizome cuttings
moderate~Roots in 4–8 weeks; established in 3–6 monthsThe reliable method. Cut the rhizome between nodes with a clean sharp knife, leaving each section with at least one node, ideally one leaf, and any existing roots. Wear gloves. Let cuts callus for 24 hours, then place each section on damp aroid mix or sphagnum moss with the cut end touching the substrate. Keep at 22–25 °C with bright indirect light and 70 %+ humidity (a propagation box is ideal). New roots emerge in 4–8 weeks; new leaves in 8–16 weeks. The mother plant continues advancing from its growing tip.
Tip cutting
moderate~Roots in 4–8 weeksCut the leading rhizome tip with at least one mature leaf and one developing leaf. Treat as a rhizome cutting (above). Note: the parent loses its growing tip and may be slow to produce a replacement; the new tip on the cutting takes over as the active growth point.
Cultivars
'Dark Form'
Selection with notably darker green leaves and more strongly contrasting silver-white venation. The collector's standard.
'Round Form'
Selection with more rounded, less elongated leaves and slightly shorter petioles. Sometimes treated as a separate species (P. rotundatum) by some authorities.
'Zebra'
Rare albino-variegated chimeric sport with cream/white sectors. Very slow, weak, and difficult — collector territory only and prone to reversion.
Common problems
Rhizome blackens and goes mushy
Symptom
Section of the rhizome turns dark brown to black, soft, and watery; nearby leaves yellow and droop together; foul smell.
Cause
Rhizome rot from chronic overwatering OR from burying the rhizome below the soil surface. Gloriosum's rhizome must sit ON the surface, not under it.
Fix
Cut away all rotted tissue back to firm pale-cream flesh with a sterilised knife. Dust the cuts with cinnamon or fungicide. Air-dry for 24 hours. Repot in fresh chunky aroid mix with the rhizome resting on the surface. Reduce watering frequency. If a healthy rhizome section with at least one node and one leaf survives, the plant typically recovers — gloriosum is surprisingly resilient if rot is caught early.
Full guide: Mushy Black Stems on Houseplants: Stem Rot vs Cold Damage vs SunburnCrispy brown leaf edges
Symptom
Leaf edges turn pale brown and crispy; affects both new and old leaves.
Cause
Low humidity (the most common cause), tap water mineral buildup, or fertiliser salt buildup.
Fix
Run a humidifier near the plant; aim for 60 %+ ambient humidity. Switch to filtered or rainwater. Flush the soil thoroughly every 2–3 months. Trim browned tips at an angle. The velvet texture is sensitive to mineral residue — never wipe leaves with hard tap water.
Full guide: Why Are My Plant's Leaf Tips Turning Brown? Diagnosis GuideLeaves emerging small and pale
Symptom
New leaves are smaller than the previous ones; venation is weak; growth is very slow.
Cause
Insufficient light, insufficient nutrition, or rhizome running out of planter length.
Fix
Check light levels (12,000+ lux is ideal). Resume regular fertilising during growing season. Check planter — if the rhizome has advanced to the front, repot into a longer planter. Gloriosum responds dramatically to better conditions but takes 2–4 leaf cycles to show the change.
Webbing or stippling on leaves
Symptom
Fine pale stippling on the upper leaf surface; very fine webbing in worst cases; leaves go dull.
Cause
Spider mites, especially in dry winter air. The velvet leaf surface is hard to clean and gives mites cover.
Fix
Rinse the plant thoroughly under a tepid shower. Treat with insecticidal soap (NOT neem oil — oil residue clogs the velvet surface and makes the leaves look greasy permanently) weekly for 3 weeks. Raise humidity. Quarantine until cleared.
Full guide: Spider Mites on Houseplants: Identify Webbing, Damage, and How to Kill ThemLeaves never reach mature size
Symptom
Each new leaf is roughly the same modest size; the plant never produces the characteristic 30–50 cm leaves shown in photos.
Cause
Indoor conditions limit leaf size. Wild plants in Colombian forest understorey produce 50+ cm leaves; indoor plants in average light produce 15–30 cm leaves. This is normal, not a failure.
Fix
To maximise leaf size: provide brighter indirect light (15,000+ lux), maintain 70 %+ humidity, keep temperatures consistently 22–26 °C, fertilise regularly, and use a long shallow planter so the rhizome isn't space-limited. Even with all of these, indoor leaves usually plateau at 25–35 cm — that is the size to aim for.
- Spider mites (the velvet surface is hard to clean)
- Mealybugs
- Thrips
- Scale insects
- Rhizome rot (overwatering or buried rhizome)
- Bacterial leaf spot (Erwinia)
Toxicity & safety
Chewing the plant releases needle-sharp calcium oxalate raphides into the mouth, causing intense burning, swelling of the lips and tongue, drooling, and difficulty speaking. Sap on skin causes contact dermatitis.
Mechanism: Insoluble calcium oxalate raphides physically penetrate mucosa.
Philodendron toxicity — NCBI / PFAFOral irritation, intense burning, drooling, vomiting, difficulty swallowing. Severe airway swelling possible (rare).
Mechanism: Insoluble calcium oxalate raphides physically penetrate oral mucosa.
Philodendron — ASPCA Toxic and Non-Toxic PlantsOral irritation, intense burning, drooling, vomiting, difficulty swallowing.
Mechanism: Insoluble calcium oxalate raphides physically penetrate oral mucosa.
Philodendron — ASPCA Toxic and Non-Toxic PlantsPhilodendron gloriosum was described in 1876 by the French botanist Édouard André from Colombian material. Despite being known to science for nearly 150 years it remained a botanical-garden curiosity until the 2010s, when collector demand exploded during the aroid bubble. At the 2021 peak, single rooted gloriosum cuttings sold for €150–400 in Northern European markets; tissue culture has since dropped prices to €40–80 for established plants. The species' wild Colombian populations are stable but its habitat is shrinking with deforestation in Antioquia, and most commercial stock is now nursery-grown.
Frequently asked · 5
Is Philodendron gloriosum safe for cats and dogs?+
No — ASPCA lists Philodendron as toxic to cats, dogs, and horses. All parts contain calcium oxalate raphides — needle-sharp crystals that physically penetrate the oral mucosa when chewed, causing intense burning, drooling, vomiting, and swelling of the lips and tongue. Severe airway swelling is possible but rare. If your pet chews the plant, rinse their mouth with cold water and contact a vet. Keep well out of reach.
Why is my Philodendron gloriosum not climbing?+
Because gloriosum is not a climber — it is a terrestrial rhizomatous crawler, one of relatively few philodendrons that grow horizontally rather than vertically. The thick fleshy rhizome creeps along the soil surface producing one new leaf at each node. Trying to train it up a moss pole is futile. Instead use a long shallow rectangular planter (window-box style), rest the rhizome on top of the soil (do NOT bury it), and let the plant advance horizontally. A 60 cm long planter accommodates 2–3 years of growth.
How often should I water Philodendron gloriosum?+
When the top 2–3 cm of soil is dry — typically every 7–10 days in summer and every 10–14 days in winter. Water thoroughly until water runs from the drainage holes, then empty the saucer. The rhizome is moderately rot-prone, so err on the dry side. Use room-temperature filtered or rainwater — tap water mineral buildup damages the velvet leaf surface over time, leaving permanent dull spots.
Why are my gloriosum leaves so small?+
Indoor conditions limit leaf size. Wild plants produce 50+ cm leaves in Colombian forest understorey; indoor plants in average apartment light typically plateau at 15–30 cm. That is normal, not a failure. To maximise size: bright indirect light (15,000+ lux), 70 %+ humidity, consistent 22–26 °C, regular fertilising during growing season, and a long shallow planter so the rhizome isn't constrained. Even then, indoor leaves usually max out at 25–35 cm — that is the realistic goal.
How do I propagate Philodendron gloriosum?+
Rhizome cuttings. Cut the rhizome between nodes with a sterile knife, leaving each section with at least one node, ideally one leaf, and any existing roots. Wear gloves — the sap is irritating. Let cuts callus for 24 hours, then place each section on damp aroid mix or sphagnum moss with the cut end touching the substrate. Keep at 22–25 °C with bright indirect light and 70 %+ humidity (a propagation box is ideal). New roots emerge in 4–8 weeks. The mother plant continues advancing from its growing tip — you essentially get two plants from one rhizome.
- Are Houseplants Toxic to Cats and Dogs? A Quick-Scan Safety Guide
- My Cat or Dog Just Ate a Houseplant — What to Do Right Now
- How to Propagate Houseplants: The Complete Water vs. Soil Guide
- Mushy Black Stems on Houseplants: Stem Rot vs Cold Damage vs Sunburn
- Spider Mites on Houseplants: Identify Webbing, Damage, and How to Kill Them