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

• Position: partial shade
• Soil: humus-rich, moist, well-drained soil
• Rate of growth: average
• Flowering period: March to May
• Hardiness: fully hardy
  
  Often considered to be one of the best and showiest blue forms, this plain leaved, deciduous plant produces compact clusters of rich, violet-blue flowers on upright stems throughout spring. More tolerant of sun than most, the contrast between the unspotted, dark green foliage and the flower colour is very striking.
  
  
• Garden care: Lift and divide large clumps every three to five years after flowering or in autumn. Cut back plants affected by mildew to the ground, water and feed - the plant will regenerate and produce new leaves later in the year.