Horehound (Marrubium incanum) Genus:  Marrubium Horehound is a spreading perennial with scalloped, toothed, gray-green leaves, white-felted beneath, to 2 inches long. Small tubular flowers open in whorls in late spring, varying from tepid gray and pale lilac to greenish white. Noteworthy Characteristics:  Grown primarily for foliage. Tolerates heat and drought. Care:  Easy to grow in rich soil with occasional watering in drier summers. Propagation:  Germination is erratic. Root softwood cuttings in spring or summer. Problems:  Infrequent.

Overview

Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Light Full Sun Only Moisture Adaptable Maintenance Low Characteristics Showy Foliage Bloom Time Spring Flower Color White Uses Beds and Borders Style Rock Garden Seasonal Interest Summer Interest Tolerance Drought Tolerant Type Perennials