Propagation
Sow fresh seed during spring and maintain a temperature of 16º to 18º C. (61º to 64º F).

Take soft tip cuttings of non-flowering shoots during late spring to early summer.

Note:
Contact with the leaves may cause skin irritation, wear gloves when handling.

Botanic information
Leaf: The dark green rough texture leaves are oblong to broad ovate and may have a cordate base with a long petiole and no stipules. The undulating margin is coarsely serrated with an obtuse apex and the undersides have white stinging hairs.

Flower: The campanulate flowers have a long pedicle with purplish sepals and the 5-petals are fused to form a tube at the base and are spreading at the top. They are arranged in an open terminal panicle that is up to 300mm (1ft) long and appears during midsummer.

Fruit: The capsule contains small seeds that have a straight embryo with a fleshy endosperm. The seeds are viable but the plant may be reproduced vegetatively.