This is Agastache foeniculum, also known as Anise Hyssop, and Licorice Mint. Anise Hyssop likes to live in full sun or partial shade. Agastache foeniculum grows to about 3 feet tall where it attracts many different birds, bees, and butterflies from the middle of the Summer until early Fall. The leaves and flowers are both edible, cooked or raw. Raw seeds have a aniseed flavor and are used as flavorings in salads and many other dishes. A very nice tea is made from the dry leaves. Anise Hyssop is a nectar source for the Red Admiral, Clouded Sulphur, Painted Lady, American Lady, Common Buckeye, and Wild Indigo Duskywing butterflies and the Snowberry Clearwing moth. Agastache foeniculum is also a larval host plant for the Hermit sphinx moth. USDA Hardiness Zones 4 to 9.