This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

• Position: full sun
• Soil: fertile, well-drained soil
• Rate of growth: average
• Flowering period: June to September
• Hardiness: fully hardy
  
  The majestic, purple, thistle-like, honey-scented flowers of this stately cardoon are held above clumps of magnificent, deeply cut, silvery-green leaves. Given plenty of space, this perennial makes an eye-catching focal point for a large, sunny, mixed or herbaceous border, or potager, sheltered from strong winds. The flowers are particularly valuable for use in fresh or dried flower arrangements
  
  
• Garden care: Avoid the temptation to remove the faded flower-heads in autumn as they provide interest in the winter garden. Where temperatures fall below -15°C (5°F) protect the crown of the plant with a dry, straw mulch.