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

• Position: full sun or partial shade
• Soil: moderately fertile, moist, well-drained soil
• Rate of growth: average
• Flowering period: June to August
• Hardiness: fully hardy
  
  Dense, slender spires of star-shaped, deep blue-purple flowers from June to August above hairy, toothed green leaves. This marvellous speedwell is guaranteed to create an impact at the front of a mixed or herbaceous border. To thrive it requires a well-drained soil as plants that become waterlogged over winter are unlikely to survive.
  
  Garden care: Remove faded flower-stems in autumn. Apply a generous 5-7cm mulch of well-rotted garden compost or manure around the base of the plant in spring.