Cultivar of Sedum aizoon L., a perennial from the Crassulaceae family, whose type species is native to Siberia, China, Japan, and Korea, where it grows in dry meadows, rocky slopes, and sunny edges.
This cultivar forms upright and branched clumps, generally reaching 30 to 40 cm in height. The sturdy, upright stems bear alternate, lanceolate to oval leaves, fleshy but less succulent than many sedums, with a shiny dark green color and slightly toothed margin. The overall habit vaguely resembles that of a low spurge, which explains the cultivar's epithet.
The flowers, bright yellow to yellow-orange, are grouped in dense, flattened corymb-like cymes that crown the stems. A particularly striking detail is the coloration of the stamens and the floral center, which turns reddish-orange as the flowers bloom, creating a warm and bright contrast with the yellow petals. After flowering, the stems and flower heads take on decorative rust hues that persist into autumn.
In its natural habitat, its flowering extends from June to August; in cultivation, it generally occurs from June to July.
It is cultivated in full sun or light partial shade, in well-drained, ordinary to poor soil, without excess winter moisture. More robust and more tolerant of cool soil than creeping sedums, it is suitable for large rock gardens, dry borders, and naturalistic compositions.