Propagation
Take stem cuttings from spring to summer. Allow the cuttings to dry and form a callus before planting into a very well-drained gritty media.
Division of the clump during spring.

Botanic information
Leaf: The sessile mid green oblong-lanceolate elliptical-oblong leaves are glabrous or slightly pubescent with an acute apex. The margin is slightly serrated towards the apex and during autumn the leaves turn yellow-reddish before falling.

Flower: The yellow male and female flowers are arranged in a cup-shaped involucre-like organ (cyathia) that has small green-yellow bracts. The male flower has a single stamen and the female consists of a 3-celled pistil. The flowers are arranged in a terminal cyme that is up to 60 mm (2⅜ in) wide and appear from late-spring to midsummer. 

Fruit: The 3-valve brown glabrous to densely villous oval capsule is an explosive schizocarp and contains seeds that are viable but the plant is commonly reproduced vegetatively to maintain true to type.
Note:
Care should be taken when selecting a site as all Euphorbia's contain white sap that causes skin and eye irritation. Be certain to wash your hands with soap and water after handling plant material.