Propagation
Take semi hardwood cutting during autumn.

Botanic information
Leaf: The linear leaves have a recurved margin and the apex is acute. They have a prominent mid vein and the underside is white and the leaves are aromatic when crushed.

Flower: The tubulate flowers are pale lavender with violet spots and are arranged in a cluster of 15-20 that appear in the upper leaf axils from spring to early summer. 

Fruit: The fruit is arranged in groups of 4 small nutlets. The small seeds are viable but the plant is normally reproduced vegetatively.