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

• Position: full sun
• Soil: well-drained, neutral to alkaline
• Rate of growth: fast-growing
• Flowering period: May to October
• Hardiness: fully hardy
  
  This free-flowering perennial has slightly fleshy blue-green leaves on upright stems, topped with sweetly scented, off white flowers with a pinkish tinge from late spring. Cut back after flowering to encourage a second flush.
  
  Garden care: Deadhead regularly throughout the summer to prolong flowering. In autumn cut the plant back down to the ground and compost the dead stems.