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Anise Hyssop (Agastache foeniculum (Pursh) Kuntze)

Also known as blue giant hyssop.

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A perennial with a pleasing anise-like scent and a surprisingly sweeet flavor, native to North America, northern Minnesota, North Dakota, and farther north. Planted far outside its native range, and has established populations at a few scattered locations.

Range - Expand

Native or Not Present
Introduced or Not Present
Native or Expanded

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.


Widely planted as a landscaping plant, where it is valued for its ease of growing, its pleasing scent, and attractive flowers.

Can be used as a sweetener, much like stevia. The leaves are surprisingly sweet, unusually for plant parts not rich in sugars.

Agastache foeniculum (Anise Hyssop) | Illinois Wildflowers (About This Site)

Agastache foeniculum (Anise Hyssop) | USDA PLANTS Database (About This Site)

Agastache foeniculum | Go Botany (About This Site)

Anise Hyssop | iNaturalist (About This Site)

Agastache foeniculum (Anise Hyssop) | Missouri Botanical Garden Plant Finder (About This Site)

Agastache foeniculum | CABI Invasive Species Compendium (About This Site)

Agastache foeniculum | Biota of North America Project (BONAP) (About This Site)