Sedum is a genus of succulent, herbaceous, evergreen, perennials with fleshy, flat or rounded leaves, depending on the species. In general, the plant is upright and spreads along the ground. The genus has over 300 species. The genus name comes from the Latin word sedeo meaning to sit, in reference to the habit of many of the sedums species to sit and sprawl over rocks. It is one of the first plants that can go out in the spring after the danger of the last frost has passed in Zones 3-6. Sedums are primarily grown for their foliage. It is heat and drought tolerant.