Free high resolution photo of yellow flowers on Silver Stone Sedum. Silverstone Sedum (Sedum forsterianum) also sometimes called stonecrop, is an easy succulent to grow. It has blue green or silvery colored spiky leaves, and in the early summer it sends up stalks about a foot high covered with bright yellow flowers. This picture shows sedum in full bloom. It’s a great addition to any xeriscape or rock garden as it is very drought tolerant and requires little irrigation. Free image for any use.