The pointed, gray-green leaves of this sedum form a neat, compact mound that looks great in combination with low-growing ornamental grasses. In late summer, plants are covered with clusters of small, star-shaped white flowers that attract butterflies; they retain their ornamental appeal into winter. PP 21,833

This large genus of fleshy-leaved plants is found in mountains throughout the Northern Hemisphere (a few of the 400 species live in the drier parts of South America). They prefer well-drained soil with a pH close to neutral (7.0) and can thrive with only a modest level of nutrients. Some Sedums spread quickly and may become pests—we do not offer any of those. There are many fascinating and colorful forms that are invaluable for the rock garden; a few can be used to advantage in the perennial border.