Involucrate Fritillary (Fritillaria involucrata)

Involucrate Fritillary

Fritillaria involucrata

Delicate bell-shaped blooms nod gently above narrow foliage. Bulbous perennial; common name: Involucrate Fritillary.

Partial sun
1/week
Moderate
🌱

Plant Needs

☀️
Sunlight Bright indirect to partial sun; protect from intense midday summer sun to prevent leaf scorch
💧
Watering Water moderately during active growth, allowing the top 2 cm of soil to dry between waterings
🌡️
Temperature Hardy to -5°C; prefers cool temperate conditions, avoid prolonged temperatures above 25°C during dormancy
🔍

Characteristics

  • Leaf: Linear, grass-like leaves arranged in whorls or alternate along slender stems
  • Flower: Nodding bell-shaped blooms, typically purple or pale pink with subtle checkered markings
  • Bulb: Small, scaly underground bulb adapted for overwintering dormancy
🛠️

Care Guide

Watering

Keep soil evenly moist during active foliage and bloom periods

Fertilization

Diluted balanced liquid feed once every 2 weeks. Use a low-nitrogen feed to promote bloom production

Eggshell powder top dressing:Sprinkle finely crushed, dried eggshell powder around bulb bases in early spring; avoid direct contact with bulbs to prevent tissue burn
Pruning
  • Remove spent flower stalks after blooming to redirect energy to bulb growth
  • Cut back yellowing foliage once it dies back naturally in late summer
  • Thin overcrowded bulbs every 3–4 years in autumn to improve air circulation and bulb health
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-listed toxic; ingestion leads to vomiting, diarrhea, abdominal pain, and lethargy

Humans: Contains alkaloids; ingestion causes gastrointestinal distress and dizziness

📖

Garden Uses & Culture

Culture: N/A

Usage: Ornamental rock garden plant; limited traditional medicinal use in some regional practices