Agastache foeniculum
Agastache foeniculum photo Missouri Botanical Garden

Anise Hyssop

Agastache foeniculum is an upright perennial that is native through parts of Ontario to British Columbia. It is noted for its attractive mid- to late summer tubular blooms of lavender to purple flowers in terminal spikes and its anise-scented foliage. The flowers are attractive to bees (good nectar plant), hummingbirds and butterflies and make good cut flowers. The aromatic leaves can be used to make herbal teas or jellies. Seeds can be added to cookies or muffins. Dried leaves can be added to potpourris.  It is best used in buttefly and cottage style gardens or meadow plantings.

  • Height: 60-120 cm (2-4 ft)
  • Spread: 45-90 cm (18-36 in)
  • Cold Hardiness: Zone 4-8
  • Sun or Shade: full sun to part shade
  • Bloom Time: mid to late summer
  • Leaf Colour: green
  • Bloom Colour: lavender purple
  • Critter Resistance: deer and rabbits
  • Nature Attraction: bees, hummingbirds and butterflies

Growing and Maintenance Tips

Anise Hyssop is easily grown in average, dry to medium moisture, well-drained soils in full sun to part shade but grows best in full sun. It performs well in moist soils, but good soil drainage is essential. Plants tolerate dry soils, particularly once established. Deadhead spent flowers to promote additional bloom. Plants will spread by rhizomes and will easily self seed in optimum growing conditions.

Specials

Native New for 2025