Sedum is a large genus of flowering plants in the family Crassulaceae, including up to 600 species of annuals, perennials, creeping herbs, and sub(shrubs). They are one of the easiest succulents to take care of because they are extremely forgiving of sun and bad quality soil. Sedum plants are also known as stonecrops thanks to their tough growing habit and their ability to thrive in drought and poor soil. Sedum plants have succulent leaves. They are perfect for rock gardens and ground covers.