The International Herb Association has named the Agastache genus as the 2019 Herb of the Year. There are about 20 species, all native to North America. Of the agastache plants, anise hyssop (Agastache foeniculum) is the most well-known for culinary uses in Europe and America.
Anise hyssop is an herbaceous perennial hardy to zone 4. It is a short-lived perennial but it self-seeds and spreads a bit by rhizomes. In March, the leaves emerge with a purple hue. As the plant grows the leaves become green (although there is a golden cultivar). A member of the mint family (Lamiaceae), the leaves have scalloped edges and look like catnip leaves. Anise hyssop grows a few feet tall and about one foot wide. In the summer, there are small lavender-blue flowers on 4 to 6-inch terminal spikes, creating fuzzy wands. The flowers attract beneficial pollinators, including butterflies and hummingbirds. Because the foliage is so fragrant, deer do not seem interested.
Anise hyssop is a full sun to part shade plant tolerating a wide range of soils in a well-drained site. In addition to its culinary use, anise hyssop is an asset in the garden as an ornamental. It provides contrast to orange and yellow flowers and complements purple foliage plants.
Anise hyssop is harvested for its leaves as well as its flowers. Although the aroma is categorized as anise or licorice, some might say anise with a touch of basil or anise with a touch of tarragon. The most common use of the leaves is tea but you can also add the leaves to lamb or pork dishes, to the milk for making ice cream, sugar syrups and/or sugar syrups for cough drops, cocktails, honey, butter cookies, and sugar to make flavored sugar. The leaves dry well, retaining their taste and fragrance.
Use the flowers as a garnish for desserts, add to a salad, or add to a beverage such as ice tea. The flowers also dry well, retaining their color and aroma.
You can find small plants in the nursery in the spring or you can grow anise hyssop from seed. Sow the seed indoors under lights in order to transplant outside after the last frost or sow outside in the summer. Anise hyssop can also be propagated by root division.
This summer, grow anise hyssop in your garden for beauty as well as flavor.