PlantFun
Plant Needs
Sunlight
Requires full sun exposure for optimal flowering; tolerates hot, arid conditions without scorching
Watering
Water deeply when the top 5–7 cm of soil is completely dry; highly drought-tolerant once established
Temperature
Hardy to -10°C; withstands high summer temperatures typical of Mediterranean climates
Characteristics
- Leaf: Spiny, deeply lobed acanthus-like leaves with silvery-green upper surfaces
- Flower: Composite flower heads with papery, silvery white bracts forming a crown around yellow disc florets
- Stem: Erect, hairy stems with few branching points
Care Guide
Watering
Water regularly during active growth to support flowering; avoid waterlogging
Fertilization
Light, low-nitrogen feed once monthly. Avoid over-fertilization to preserve the plant's natural drought-adapted growth habit
Eggshell powder topdressing：Sprinkle finely ground, dried eggshells around the plant base; avoid direct contact with stems to prevent potential burningPruning
- Remove spent flower heads to maintain tidiness and encourage self-seeding
- Cut back dead foliage to ground level in late winter to promote new spring growth
- Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: No known toxic effects on cats (not listed by ASPCA)
Humans: No known toxic effects on humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental for xeriscaping and wildflower gardens; dried flower heads for decorative arrangements
