Agastache 'Black Adder'

hyssop

size: 2 litre pot

available to order from summer 2012

£7.99

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• Position: full sun
• Soil: well-drained, fertile soil
• Rate of growth: average
• Flowering period: July to October
• Hardiness: hardy (borderline)
  
  Hyssops are great for adding height to a border, with whorls of long-lasting, tiny flowers arranged like a bottlebrush and pointed, aromatic fresh green leaves that are attractive to butterflies. They are short-lived though, and may need replacing every few years, especially after a cold or wet winter. 'Black Adder' has smoky, violet flowers on long spires from July to October. Try it as part of a Mediterranean scheme or in a sunny, well-drained border among ornamental grasses.
  
  
• 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 colonies in spring.
  
  

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