Euphorbia characias wulfenii (2lt)

A bushy evergreen perennial with grey-green, glaucus foliage which remains attractive in winter. Huge heads of pale greeny yellow flowers make a fabulous display above the evergreen glaucous green foliage from April to July. Height 3-4ft (90-120cm). Spread 1m (100cm). Any soil in sun or shade. Frost hardy. Harmful if eaten, Skin and eye irritant.