85-90Days to maturity. Marrubium vulgare. Horehound Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom. Horehound is a hardy perennial herb with silvery-green leaves and small white blooms, prized for its intense bittersweet, minty flavor. Traditionally used in teas, syrups, and herbal candies, it’s both ornamental and useful in the garden. ~200,000 seeds/oz.