Agastache foeniculum - Anise Hyssop

Anise Hyssop

Agastache foeniculum

Also called Blue giant Hyssop

  • AKA Agastache anethiodora, Agastache anisata
  • Tall, upright, clumping perennial
  • Dense spikes of lavender-purple flowers with violet bracts
  • Medium green lance-shaped aromatic foliage
  • Bloom Time: Summer


Purple (pale)

100-125 cm

70-90 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 buds form, to maintain a compact habit. Remove finished flowers to promote a second flowering. No serious pest or disease problems. Spreads by rhizomes and will easily self-seed in optimum conditions. 

Additional Notes about Anise Hyssop:

Native to Ontario