Propagation
Sow fresh seed during autumn and place in a cold frame to germinate.  Prick out and pot up when large to handle.
Division of the clump during early spring.

Note:
The poisonous sap is a milky latex and may cause skin allergies or stomach upsets if ingested.

Botanic information
Leaf: The sessile soft textured leaves are obovate to elliptical oblong and are dark green and occasionally tinged with purple.

Flower: The tiny tubulate flowers are composed of a female flower with a single pistil and several male flowers each with a single stamen. Both are enclosed in an involucre (cyathium) surrounded by large showy bracts that are greenish-yellow. The flowers are arranged in a terminal cyme that is up to 80 mm (3⅛ in) wide and appear from late spring to early summer.

Fruit: The 3-valve capsule is an explosive schizocarp and contains numerous seeds that are viable but the plant is commonly reproduced vegetatively to maintain true to type.