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: moist, fertile, humus-rich soil
• Rate of growth: average
• Flowering period: August to October
• Hardiness: fully hardy
  
  5-petalled pink flowers appear on reddish-tinted stems for several months from late summer. 'Robustissima' is a vigorous perennial, which spreads by suckering shoots to form good-sized clumps of attractive, lobed leaves. It is easy to grow in full sun or light shade and copes well with any good garden soil, as long as it is not waterlogged. Wonderful for adding late colour to the garden.
  
  
• Garden care: Cut back the stalks after after the flowers have faded, and tidy up old dead leaves in March, then mulch well. ; Avoid moving the plant since it resents disturbance. Where necessary lift and divide congested clumps in autumn or early spring.