Note:
There are hundreds of cultivars of this species, a selection is listed below. Some of the following cultivars may only be found in New Zealand, USA or Great Britain.

Cultivars
'Angelica'
This hardy shrub forms a prostrate habit with lanced-shaped dark green leaves. 

'Convexa'
This plant produces blackish-green almost spineless leaves on a shrub with purplish stems. 

'Beehive'
This hardy shrub forms a compact rounded habit up to 1.3m (4ft) tall and 2m (6ft) wide with attractive dark green leaves. 

'Border Gem'
This shrub forms a low rounded habit with attractive dark green leaves and is very frost hardy. 

'Buxifolia'
This upright shrub forms a pyramidal habit up to 5m (15ft) tall and has oblanceolate dark green leaves. 

'Golden Gem'
This compact shrub produces yellowish-green foliage and rarely flowers.

'Green Lustre'
This compact male shrub produces very dark attractive leaves.

'Helleri'
This small leaves dwarf shrub forms a low dense spreading habit.

'Hetzii'
This vigorous shrub forms a bushy habit with long oblong leaves up to 35mm (1½in) long.