Convolvulus cneorum (Shrubby bindweed)
C. cneorum is a compact, spreading evergreen shrub with narrowly oblong, silvery grey-green leaves and funnel-shaped white flowers from late spring into summer.
Grow in poor to moderately fertile, well-drained soil in a sheltered, sunny site. Suitable for growing in containers in loam-based compost with added grit. Water regularly in growth.