Philodendron gigas – Velvet Giant for Ambitious Indoor Gardens


Philodendron gigas Croat, published in Ann. Missouri Bot. Gard. 84: 446 (1997), is a rare, large-leaved climbing aroid known for its deep green, satin-finished foliage and striking red-purple undersides. Endemic to a narrow region in Panamá, this critically endangered species grows vertically along humid rainforest trees. Indoors, Philodendron gigas starts slowly but becomes a vigorous climber with time, ideal for collectors looking to showcase bold foliage and a velvety aesthetic.


Striking Features of Philodendron gigas
 
Velvety Leaves: Mature foliage reaches 100–125 cm under ideal indoor conditions, with a shimmering, soft surface and pale venation.
 
Growth Habit: Juveniles begin with smaller, darker leaves that elongate and lighten in color as the plant matures.
 
Climbing Nature: Once established, this species develops appressed stems and climbs rapidly with vertical support.
 
Toxicity: Contains raphides (calcium oxalate crystals); toxic to pets and humans if ingested.


Origin, Habitat, and Conservation
 
Native Range: Strictly endemic to the El Llano–Cartí road corridor in Panamá Province.
 
Habitat: Found in moist, shady tropical forests with frequent rainfall and high ambient humidity.
 
Conservation Status: Listed as Critically Endangered due to extreme habitat restriction and ongoing deforestation.


Indoor Care Tips for Philodendron gigas
 
Light: Provide bright, indirect light. Tolerates medium light but with smaller, darker leaves.
 
Watering: Allow the top 3–5 cm of substrate to dry before watering. Avoid prolonged wetness.
 
Humidity: Maintain 60–80%. Use a humidifier or group plants together to simulate rainforest conditions.
 
Temperature: Ideal range is 18–27 °C. Keep away from cold drafts and sudden temperature shifts.
 
Soil: Use a chunky, airy substrate with coconut coir, perlite, and orchid bark.
 
Fertilizing: Apply a balanced liquid fertilizer monthly to encourage steady climbing and leaf expansion.
 
Support: Use a moss pole or trellis to guide upward growth and prevent sprawling.
 
Repotting: Every 1–2 years, or when roots fill the pot. Use a breathable pot with excellent drainage.


Propagation and Semi-Hydro Adaptability
 
Stem Cuttings: Take cuttings with at least one node. Root in water, sphagnum, or moist aroid mix with high humidity.
 
LECA Setup: Adapts to semi-hydroponics after gradual acclimation. Leaf size may slow without high humidity support.


Common Problems and How to Solve Them
 
Yellow Leaves: Overwatering or lack of nutrients — adjust watering schedule and apply fertilizer monthly.
 
Brown Leaf Tips: Caused by dry air or erratic moisture — boost humidity and even out watering intervals.
 
Pests: Watch for thrips, spider mites, and mealybugs. Use insecticidal soap early; neem oil if infestation worsens.
 
Root Rot: Triggered by soggy soil — improve aeration, let soil dry slightly, and repot if needed.
 
Fungal Spots: Improve airflow and avoid wetting leaves; treat with fungicide if symptoms persist.


Etymology of Philodendron gigas
The genus Philodendron is derived from Greek: "philo" (love) and "dendron" (tree), referring to the plant’s natural climbing behavior. The species name gigas means “giant” in Latin — a fitting nod to its enormous mature leaves and bold growth form.


FAQs – Growing Philodendron gigas Indoors
 
Is Philodendron gigas a fast grower? It starts slowly but accelerates as roots develop. With proper light and humidity, it can double its vine length in a year.
 
Does it tolerate lower light? Yes, but growth slows and leaves remain smaller and darker.
 
Is vertical support necessary? Absolutely — it requires a moss pole or stake to maintain healthy upright growth.
 
Can I grow it in a grow tent? Yes, especially helpful for maintaining high humidity and airflow during early growth stages.


Add Philodendron gigas to Your Collection
Ready to grow something extraordinary? Philodendron gigas is a velvet-leaved statement plant that rewards patience with massive foliage and rare beauty. Order now and bring a piece of Panamá’s rainforest into your indoor jungle.