PlantFun
Plant Needs
Sunlight
Full sun to partial shade; requires at least 6 hours of direct sunlight daily for optimal blooming; tolerate light afternoon shade in hot climates
Watering
Keep soil evenly moist during active growth and blooming; reduce watering significantly after foliage yellows to avoid bulb rot
Temperature
Hardy to -5°C; requires cool winter temperatures (5–10°C) for bulb vernalization; dormant in summer heat above 25°C
Characteristics
- Leaf: Linear, sword-shaped, blue-green, upright basal growth
- Flower: Fragrant 6-petaled blooms in purple, white, yellow, or bicolor; outer petals with yellow/orange central signal
- Bulb: Small, tunicated underground storage structure
Care Guide
Watering
Keep soil consistently moist but not waterlogged during active growth and blooming
Fertilization
Diluted balanced liquid feed once every 2 weeks during active growth. Use a low-nitrogen fertilizer to promote bulb development rather than leaf growth
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle 1 teaspoon per bulb in early spring to improve soil calcium levels and reduce blossom end rot riskPruning
- Remove spent blooms promptly to prevent seed formation and conserve bulb energy
- Cut back yellowing foliage only after it has fully died back (6–8 weeks post-bloom) to allow nutrient transfer to the bulb
- Dig up and divide overcrowded bulbs every 3–4 years in late summer to maintain blooming vigor
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; contains iridin glycosides, may cause gastrointestinal distress and lethargy
Humans: Bulb sap may cause oral irritation and nausea if ingested; skin contact can trigger mild dermatitis
Garden Uses & Culture
Culture: Symbolizes wisdom, faith, and valor in European folklore; often used in spring wedding bouquets
Usage: Ornamental garden plant, cut flower for floral arrangements
