55-65 days to maturity. Agastache rugosa. Korean Mint Agastache Seeds. Non-GMO, Heirloom, Perennial in Zones 4-9. Korean Mint is a drought-tolerant aromatic herb in the mint family that is native to East Asia. It has appetizing licorice (anise) scented serrated, crinkled, oval leaves. Pollinators and gardeners love this low-maintenance plant! The leaves have many culinary applications, and the flowers are superb for use in arrangements. Add this performer into any garden style, and it will fit right in! About 60,000 Seeds / Oz.