Cultivars
'Alba'
This plant grows to 1.2m (5ft) tall and produces abundant white flowers.  

'Alba Compacta'
This dwarf plant forms a low compact habit producing white flowers.

'Brian Proudly'
This vigorous plant grows to 1m (3ft) tall and has bright green leaves and produces tall racemes of white flowers.  

'Brightness'
This rounded dwarf plant grows to 500mm (20in) tall and has glaucous green leaves that turn purplish during winter. The lilac-pink flowers appear during spring. Suitable for rockeries and small gardens.

'Coccinea'
This small plant grows to 1m (3ft) tall and produces bright pink buds that open to rose-pink flowers. 

'Glauca'
This erect shrub grows to 1.2m (5ft) tall with a dense habit and has slightly glaucous green leaves. It produces pale-flesh coloured flowers. 

'Golden Lady'
This rounded dwarf plant grows to 300mm (12in) tall and has golden yellow leaves that may be burnt in cold wind. It produces white flowers during early spring. 

'Hibernica'
This plant produces shell-pink flowers in late winter.

'Irish Dusk'
This dwarf plant grows to 600mm (24in) tall with a compact habit and has grey green leaves. It produces rose-pink flowers from late autumn to late spring.

'Nana'
This dwarf plant grows to 200mm (8in) tall and produces silvery pink flowers. 

'Rubra'
This dwarf plant grows to 400mm (16in) tall with dark green leaves and produces ruby-red flowers. 

'Superba'
This plant grows to 2m (6ft) and produces shell-pink flowers that become darker with age and are scented.