About
Philodendron billietiae is a hemi-epiphytic aroid from northeastern South America, prized for its orange-yellow leaf stalks and wavy, ridged leaf margins.
Care at a glance
- Pet safety
- Toxic to cats, dogs and horses: insoluble calcium oxalate crystals cause mouth pain and swelling, drooling, difficulty swallowing and, in cats and dogs, vomiting (ASPCA, for philodendrons). General guidance for the genus
- People
- Harmful if eaten: calcium oxalate crystals cause pain and swelling of the mouth, lips, tongue and throat; the sap can irritate skin. General guidance for the genus
- Light
- Bright indirect light; direct sun can scorch the leaves. General guidance for the genus
- Water
- Keep the soil evenly moist but never waterlogged; overwatering leads to root rot. General guidance for the genus
- Humidity
- Prefers high humidity but adapts to average indoor levels; a humidifier or pebble tray helps in dry rooms. General guidance for the genus
- Temperature
- About 18–29 °C (65–85 °F); keep away from cold draughts. General guidance for the genus
- Soil
- Moist, well-drained mix rich in organic matter. General guidance for the genus
- Propagation
- Stem cuttings or layering. General guidance for the genus
- Hardiness
- Frost-tender; grown outdoors only in USDA zones 10a–12a, elsewhere as a houseplant. General guidance for the genus
“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.
Field notes
Morphology
Leaves have distinctive orange-yellow petioles and undulating, ridged edges.
Distribution & habitat
Lowland tropical rainforest in Brazil, Guyana and French Guiana.
History & etymology
First found by Frieda Billiet in French Guiana in 1981 and described in 1995. Living material was grown on at the National Botanic Garden of Belgium in Meise, which brought it into cultivation.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- Brazil, Guyana, French Guiana
Cultivation
- Difficulty
- Not recorded
- Temperature
- About 18–29 °C (65–85 °F); keep away from cold draughts.
- Humidity
- Prefers high humidity but adapts to average indoor levels; a humidifier or pebble tray helps in dry rooms.
Text adapted from Wikipedia, CC BY-SA 4.0.
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