Korean Mint

Agastache rugosa.  A member of the mint family.  We have seen it overwinter in zone 4!  We absolutely adore this plant for its sweet anise flavor, our kids eat it fresh in the fields and ask for it with their watermelon slices.   Upright purple flowers, a fun cut flower and delicious sun tea.  Attracts the pollinators and seems to bloom all summer. Space 1 to 2 feet apart. Grows 3-4 feet tall.