PlantFun
Plant Needs
Sunlight
Requires full sun for optimal flowering; tolerates reflected heat and dry, exposed conditions
Watering
Highly drought-tolerant; water only during extended multi-week dry spells to prevent root rot
Temperature
Hardy to mild frosts; thrives in warm, arid Mediterranean climate conditions
Characteristics
- Leaf: Spiny, silver-grey basal rosette leaves with woolly, white undersides
- Flower: Composite flower heads with papery, silvery bracts that persist post-bloom
- Stem: Short, leafless flowering stalks emerging directly from the basal rosette
Care Guide
Watering
Water sparingly only when soil is completely dry; avoid overwatering
Fertilization
Diluted balanced feed once every 2 months. Fertilizer is optional; overfeeding can reduce drought tolerance
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface to improve drainage and add trace calcium without risk of nutrient burnPruning
- Remove spent flower heads to maintain tidy rosette appearance
- Thin overcrowded basal leaves in early spring to improve airflow
- Trim dead foliage in late winter to encourage new spring growth
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No documented toxic effects from ingestion or contact
Garden Uses & Culture
Culture: Symbolizes endurance and resilience in Mediterranean folklore
Usage: Ornamental rock garden plant; historically used for mild digestive and wound care remedies
