Salvia uliginosa

bog sage

• Position: full sun or partial shade
• Soil: moderately fertile, moist to well drained soil
• Rate of growth: average
• Flowering period: July to September
• Flower colour: turquoise
• Other features: aromatic foliage
• Hardiness: frost hardy (needs winter protection)
  
  Stunning clear blue flowers appear in spikes on top of tall stems from summer to autumn. This tall salvia is perfect for adding a splash of colour at the back of a herbaceous border. It copes well in sun or light dappled shade and the flowers are a magnet for butterflies and bees.
  
  
• Garden care: To prolong flowering remove the flower spikes as soon 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.