PlantFun
Plant Needs
Sunlight
Partial to full sun; provide afternoon shade in hot inland regions to prevent leaf scorch
Watering
Water deeply when the top 2–3 cm of soil is dry; avoid waterlogging to prevent root rot
Temperature
Hardy to 0°C; thrives in cool coastal temperatures, avoid prolonged heat above 32°C
Characteristics
- Leaf: Sword-shaped, gray-green, evergreen, forming dense basal clumps
- Flower: Showy 7–10 cm blooms in purple, lavender, or white with yellow/gold central signals
- Stem: Short, sturdy flowering stems bearing 1–3 blooms per stem
Care Guide
Watering
Keep soil consistently moist but not saturated
Fertilization
Diluted balanced fertilizer applied once monthly. Use low-nitrogen feed to prioritize flower production over leaf growth
Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle lightly around plant bases and water in to slowly release calciumPruning
- Remove spent flower stems after blooming to redirect energy to root and leaf growth
- Trim browned or damaged leaf tips as needed to maintain tidy clumps
- Thin overcrowded clumps every 2–3 years in late summer to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion causes vomiting, diarrhea, lethargy, abdominal discomfort
Humans: Mild oral irritation if ingested; skin rash possible from sap contact
Garden Uses & Culture
Culture: N/A
Usage: Ornamental garden plant; supports native pollinators including bees and butterflies
