General Description | Euphorbia characias subsp. wulfenii is an upright evergreen sub-shrub with narrow, grey-green leaves and heads of yellow-green flowers. |
ID Characteristic | Sparsely-branched. |
Propagation | Propagate by division in early spring or take basal cuttings in spring or early summer.
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Cultivation | Grow in a sheltered location, in full sun to part shade and light, well-drained soil. In late summer or autumn prune flowering shoots to the ground. Gloves should be worn when handling this plant as the sap is toxic. |
Pests | Susceptible to aphids. No serious diseases of note. |
Notable Specimens | RHS Garden Rosemoor, North Devon, England. |
Leaf Description | Narrow, linear to obovate, up to 13 cm in length, grey-green, arranged spirally along stems. |
Flower Description | No petals, bracts are yellow-green, glands purple, arranged in large, rounded clusters. |