Lamb's Ear: Stachys byzantina. Perhaps the most well-known species of the lamb's ears. 'Countess Helene von Stein' (also called 'Big Ears') is a popular cultivar that offers leaves double the size (four inches across and up to 10 inches long!)
Try growing lamb's ear in your garden. This plant is a variety of perennial herb with fuzzy green leaves and pretty pure purple flowers on long stalks. It is easy to grow and makes a great ground cover.