Cultivars
'Broughton Dome'
This compact dwarf shrub grows to 450 mm (18in) tall by 800 mm (44in) wide forming a compact rounded habit. The flowers are not commonly produced but the foliage is very attractive. It is commonly cultivated in the UK in small gardens or rockeries where it was discovered.

'Nana'
This dwarf shrub grows to 300 mm (12in) tall by 600 mm (24in) wide with dark green foliage and produces bluish flowers during summer. It prefers he semi shaded to full sun position in growing in well drained fertile sandy to light clay soils with a pH of 7-8.  It is planted in small gardens along borders or in rockeries and may be used as a container plant. 

Once established it has a low water requirement (Scale: 1-drop from 3), responding to mulch and an occasional deep watering during dry periods, particularly for young plants.