Agastache x 'Black Adder' - Hyssop
Agastache x 'Black Adder' - Hyssop


Agastache x 'Black Adder'

Also called Black Adder Hyssop

  • Dark purple-black buds open to violet-blue flowers
  • Upright, clump forming habit
  • Licorice-scented foliage
  • Bloom Time: July to September


Blue, Violet-blue

90-120 cm

45-60 cm

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Growing and Maintenance Tips:

Grows best in full sun and an average to dry, well-drained soil. If desired, pinch main stems in June just before the buds form, to keep the plant compact. After flowering, remove old flowers to promote a second flowering. No serious pest or disease problems.

Additional Notes about Hyssop:

Licorice-scented foliage can be used in teas and added to salads.
Cross between A. rugosum and A. foeniculum