These tough Mediterranean natives are notable for their attractive foliage, profuse summer show of small, round, button-like flower heads, and stout constitutions. All are aromatic if bruised.
Unpruned plants tend to become sparse and woody in the center. Cut back yearly, before spring growth begins; you can simply trim as needed around the edges (as if giving the plant a haircut) or cut the whole plant back to a few inches high. After blossoms fade, shear or clip off flowering shoots. In coldest part of the range, plants may die to the ground, but they should grow back from roots.
Good as groundcovers, bank covers, edgings for walks or borders, or low informal or sheared hedges. Grow in any well-drained soil.
Grows to 2–2 1/2 ft. tall and 3 ft. wide, with narrow, tooth-edged, dark green leaves and cream-colored flowers. S. p. neapolitana is 12–15 in. tall; has silvery foliage and bright yellow flowers.
Hoop petticoat flowers; small, mostly trumpet with almost threadlike perianth segments. Varieties incl...
Native to North America, Asia, Europe. Clumps of narrow dark green leaves grow to 1–2 ft. tall a...
Native Europe to central Asia. This weedy, rhizomatous plant is grown for its sweet-scented foliage (u...