Agastache foeniculum (Anise Hyssop)

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner’s Sons, New York. Vol. 3: 112.

Where Commonly Found: Dry, open, semi-shaded areas, roadsides in CT, NH, NY, RI.
How to Identify:
(For unfamiliar words: Wikipedia Glossary of Botanical Terms).
Go Botany Key for Agastache foeniculum,
Missouri Botanical Garden’s description of Agastache foeniculum.  Click on more images.

Flower Color:  Blue to Purple,
Flower Type:  Bilaterally symmetrical,
  terminal spikes, densely packed, cylindrical, individual tiny two-lipped flowers, 1/3″ long with 5 petals and 4 stamen.
Flower Time:  Mid-July – Late September
Leaf Arrangement:  Opposite leaves, two leaves per node along square stem.
Leaf Type:  Simple, broad to ovate lanceolate dull, toothed leaves, to 4″, anise-scented leaves, whitened underneath, petioles are 3/8″ – 5/8″ long.  Sepals are blue-purple and finely hairy.
Height:  3′-5′
Seed Collection:  Look inside calyx cup, seeds are at base, begin to darken when ripe,  about 3-4 weeks after flowering.  Can harvest whole flower, store in paper bag, shake seeds free when dry.

Attracts:  Bees, Butterflies, Hummingbirds
Use:  Garden or Naturalizing
Light:  Full Sun to Part Sun
Hardiness Zone:  4 to 8   USDA Zone Map
Soils:  Dry to Moist
Notes:  One of the best for supporting pollinators while providing a beautiful late season flower show with anise-scented foliage.
Introduced and naturalized in NH, CT, MA, NY, native to upper Midwest:  Biota of North America Program (BONAP) – North American Plant Atlas (NAPA).

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