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

• Position: full light (with shade from hot sun)
• Soil: well-drained
• Rate of growth: average
• Flowering period: July to September
• Hardiness: frost hardy (needs winter protection)
  
  Producing a spectacular display from midsummer to mid-autumn, when the larger than average, piercing blue flowers appear, this gentian sage will thrive in sheltered, sunny gardens with well-drained soils.
  
  
• Garden care: To prolong flowering remove the flower spikes as soon as they start to fade. Apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant in spring.