White Horehound is a Marrubium vulgare perennial with 2-foot upright stems, fuzzy gray-green leaves and tiny white snapdragon-shaped flowers in the leaf junctions.
Sow on the surface as seeds need light, indoors 4-6 weeks before last frost in 65-70F soil. Sprouts in 14-21 days. Transplant outside after frost 10-12 inches apart in full sun.
