PlantFun
Plant Needs
Sunlight
Full sun to partial shade; produces larger bulbs in full sun; tolerates mild afternoon shade in hot climates
Watering
Water deeply when the top 5 cm of soil dries out; avoid waterlogging to prevent bulb rot and fungal growth
Temperature
Hardy to -10°C; dormant in cold winters; tolerates warm summer temperatures up to 30°C
Characteristics
- Leaf: Flat, linear blue-green leaves up to 1 m long, growing in dense basal clumps
- Flower: Dense umbel of small star-shaped white flowers atop a tall hollow scape
- Bulb: Large segmented bulb with papery pale brown outer layers
Care Guide
Watering
Keep soil consistently moist during active growth; reduce watering as foliage begins to yellow
Fertilization
Apply balanced organic compost at planting; side-dress with compost in early spring. Avoid high-nitrogen fertilizers to prioritize bulb development over leaf growth
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle a 1 cm layer around plant bases in early spring; work lightly into topsoil to avoid pest attractionPruning
- Remove yellowing foliage as it dies back to reduce fungal disease risk
- Deadhead spent flower heads to redirect energy to bulb growth
- Thin overcrowded clumps every 2–3 years in early spring to improve bulb size and airflow
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; contains thiosulphate compounds that damage red blood cells
Humans: Edible for humans in typical culinary amounts; rare mild digestive upset with excessive raw intake
Garden Uses & Culture
Culture: N/A
Usage: Culinary use of bulbs and leaves (milder flavor than garlic); ornamental garden border plant
