Perennial herbs are plants that live for more than two years and can be used for medicinal, culinary, or ornamental purposes. The crossword solutions for the term Perennial Herb include Sego (4 letters), GEUM (4 letters), GINSENG (7 letters), Irid (4 letters), Maidenswreath (13 letters), and Lilyofthevalley (15 letters). Sego is a type of lily native to the western United States, GEUM is a genus of perennial herbs in the rose family, GINSENG is an herb native to eastern Asia, Irid is a genus of flowering plants, Maidenswreath is a type of clematis vine, and Lilyofthevalley is a species of flowering plant native to Europe and Asia.