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, fertile soil
• Rate of growth: average
• Flowering period: July to October
• Hardiness: frost hardy (may need winter protection)
  
  ‘Litte Adder’ is great for adding height to a border, with whorls of long-lasting, tiny lavender-blue flowers arranged like a bottlebrush and pointed, aniseed-scented, fresh green leaves that are attractive to butterflies. Try it as part of a Mediterranean scheme or in a sunny, well-drained border among ornamental grasses. Hyssops often need replacing every few years, especially after a cold or wet winter but can be easily propagated by cuttings.
  
  
• Garden care: Don't cut back the faded flower-stems until early spring, as they provide interest in the winter months. Lift and divide congested clumps in spring.