Sedum rupestre 'Angelina' (Stone orpine)

This is a vigorous, mat-forming evergreen species with small gray-green leaves and terminal clusters of star-shaped, vibrant yellow flowers in summer. The drooping buds face upward when they open. It grows to 4 inches tall and 2 feet across.

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This cultivar has leaves suffused with steely-gray purple. It forms a 1.5-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but cannot survive wet winter conditions.

'Goldrush' heralds the coming of fall with masses of tiny, yellow flowers for four weeks in August and September. Its compact size—about a foot tall—makes it a great candidate for a rock garden or border edge.

This cultivar has a compact, bushy habit to 20 inches tall and purple-red flushed leaves, especially on new growth and in winter. It produces yellow bracts in mid-spring and early summer.