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: humus-rich, moist soil
• Rate of growth: average
• Flowering period: July
• Hardiness: fully hardy
  
  Towering spikes of star-shaped, white or pink flowers on large panicles up to 60cm long in midsummer. This striking, clump-forming perennial with its horse chestnut-like leaves looks great planted in the moist margins of a stream or pond. Best grown in a sheltered, shady spot where it contrasts well with the lacy texture of ferns.
  
  
• Garden care: Add lots of well-rotted leaf mould when planting. Protect the young foliage against slug damage using beer traps or environmentally friendly slug pellets. Lift and divide congested colonies in early spring.