Cultivars
'Edith Wilder'
This shrub grows to 3m (10ft) and produces deep maroon coloured flowers that have a strong scent. During autumn the leaves turn yellowish.

'Margarita'
This shrub produces yellow fragrant flowers otherwise it is simular to the species.

'Purpureus'
This plant produce purplish leaves otherwise it is simular to the species.

'Towe'
This shrub is up to 3m (10ft) tall and produces yellow unscented flowers and has large dark green leaves that turn deep yellow during autumn.