Long-leaf Philodendron (Philodendron longifolium)

Long-leaf Philodendron

Philodendron longifolium

A striking tropical aroid celebrated for its elongated, strap-like foliage that adds a cascading jungle aesthetic to indoor spaces. Other names: Strap-leaf Philodendron.

Prefers bright, indirect light; avoid harsh direct afternoon sun which can scorch the leaves.
1/week
Moderate
🌱

Plant Needs

☀️
Sunlight Prefers bright, indirect light; avoid harsh direct afternoon sun which can scorch the leaves.
💧
Watering Keep the soil lightly moist during the growing season, allowing the top 1-2 inches of soil to dry out between waterings.
🌡️
Temperature Thrives in warm, tropical temperatures; protect from cold drafts and temperatures below 15°C (59°F).
🔍

Characteristics

  • Leaves: Elongated, strap-like to lanceolate, leathery, glossy deep green, with a prominent midrib and entire margins;
  • Stems: Climbing or trailing vines, green to brownish with age, producing aerial roots at the nodes;
  • Flowers: Typical aroid inflorescence consisting of a greenish-white spathe surrounding a central spadix, rarely produced in cultivation;
  • Roots: Fibrous subterranean roots supplemented by thick, grasping aerial roots used for climbing host trees.
🛠️

Care Guide

Watering

Water thoroughly when the top inch of soil feels dry, ensuring excess water drains away.

Fertilization

Apply a balanced, diluted liquid fertilizer to support new foliage growth.. Feed monthly during the active growing season; pause fertilization during winter dormancy.

Aquarium Water Fertilizer:Use dirty water from routine freshwater aquarium changes to water the plant. It provides a gentle, natural source of nitrogen and beneficial microbes. Ensure the aquarium water does not contain added salts or medications.
Pruning
  • Maintenance: Remove any yellowing, dead, or damaged leaves at the base of the petiole to maintain appearance and hygiene;
  • Size Control: Trim excessively long or leggy vines just above a node to encourage bushier growth;
  • Propagation: Stem cuttings containing at least one node and an aerial root can be easily propagated in water or sphagnum moss.
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic to cats per ASPCA. Ingestion of calcium oxalate crystals causes intense oral irritation and gastrointestinal distress.

Humans: Contains insoluble calcium oxalate crystals. Chewing or biting into the plant releases these crystals, causing tissue penetration and irritation of the mouth and GI tract.

📖

Garden Uses & Culture

Culture: Philodendrons became a staple of mid-century modern interior design in the West, prized for their ability to bring a touch of the exotic jungle into urban apartments with minimal effort.

Usage: Excellent as a trailing plant in hanging baskets, or trained to climb upwards on a moss pole or trellis to encourage larger, more mature foliage.