Euphorbia characias 'Black Pearl' (Spurge)
'Black Pearl' is a compact, evergreen shrub with upright, leafy, biennial stems bearing linear to ovate, grey-green leaves and, from early spring into summer, cylindrical cymes of tiny, yellow flowers and conspicuous, black nectar glands surrounded by prominent, green to yellow-green bracts.
CultivationPlant in free-draining soil in full sun. If necessary, add grit or sharp sand to the soil to improve drainage. Dislikes winter wet, so a gravel mulch will help avoid rotting.