Helianthemum 'Wisley Primrose'

Common name(s): sunrose

Description: perennial; thought to be a hybrid of H. apenninum and H. nummularium. Low-growing and spreading into a dense, evergreen carpet of glossy, gray-green foliage. Profuse blooms of small (1 in.) custard yellow flowers in early summer and sometimes again in autumn. Longer-lived in very lean soils with little to no supplemental irrigation.

Height: to 8 in. Spread: to 4 ft.

Position: full sun and lean, well-draining soil

Uses: ornamental- as a groundcover

Winter Hardiness: to 0 F and below

Drought: adapted to 3 months of summer drought