Cultivars
'Compacta'
This small shrub grows to 1.5m (5ft) tall and wide forming a bushy habit and responding to a light prune. It produces profuse purple flowers during spring and the foliage emits a minty aroma. 

It grows in a full sun to semi shaded position tolerating most well drained, moist soils and has a low water requirement once established. (Scale: 1-drop from 3) It is planted in low shrub borders or in containers and is frost and drought tolerant. 

'Variegata'
The plant is simular to the species and produces leaves with irregular yellow margins. It is planted in low shrub borders or in containers and is frost and drought tolerant.