Propagation
Surface sow fresh seed during spring in a well-drained media, prick out and pot up when they are large enough to handle.

Divide existing clumps (rhizome) during spring.
Take soft tip cuttings of non-flowering shoots during the growing period.

Botanic information
Leaf: The dark green broad ovate stem leaves up to 150 mm (6 in) long with double serrated ciliate margins and a long acuminate apex. The pubescent upper surface has a puckered texture and the petiole is a short and they arranged decussate along the squarish stems.

Flower: The pinkish purple 2-lipped bilabiateflowers are up to 40 mm (1? in) long with the upper lip hooded and the lower lip divided into 3-lobes. They are arranged in a leafy spike-like inflorescence that appears from late spring to early summer.

Fruit: The small fruit is composed of 4-nutlets with viable seeds but the plant is normally reproduced vegetatively.