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Euphorbia characias subsp. wulfenii

Upright, sparsely-branched sub-shrub. Large, rounded heads of greenish-yellow flowers. Cut back after flowering.

Flowering period: Spring.
Growing conditions: Sheltered, sunny position in light soil.
Special note: Always wear gloves when working with euphorbias. The milky sap is a skin irritant. Cut back dead flowering stems in autumn.
Typical mature height: 48 inches ( 122 cms )
Hardiness: Hardy. Should withstand average to cold UK winters.