Cultivars
'Alba'
This deciduous climber produces pure white flowers from spring to early summer and grows in a semi shaded to full sun position. It prefers an organic rich moist soil and has a medium water requirement once established. (Scale: 2-drops from 3)
 
'H.F. Young'
This compact deciduous climber grows to 2.5 m (8ft) tall and produces soft blue crateriform flowers up to 100 mm (4in) wide during early summer, on the previous season's growth.  It has mid-green foliage and prefers a semi shaded position, growing in USDA zones 4-9

‘Kathleen Wheeler’
This deciduous climber produces very large plum-mauve crateriform flowers up to 230 mm (9 in) in diameter from spring to early summer, on the previous season's growth. The divided leaves have 3-broad bright green lace-shaped leaves and the new stems are reddish. 

It prefers a semi shaded to full sun position and grows in organic rich moist soil that is tending acidic and has a medium water requirement once established. (Scale: 2-drops from 3) it grows in USDA zones 4-9

'Proteus'
This deciduous climber grows to 2.4 m (7 ft) tall with a moderate growth rate and produces soft purple-pink single or sometimes double saucer-shaped flowers up 250 mm (9¾ in) in diameter. 

It has dark green foliage and is grown in containers or used as a spillover along retaining walls. It was raised by Charles Noble in England during 1876 and is suitable to USDA zones 5-6.

'Snow Flake'
This deciduous climber produces pure white scented flowers during late spring growing in a full sun to semi shaded position on well drained moist fertile soils. When selecting a position be certain that the roots are kept moist and cool. 

It is drought tender but frost tolerant and has a medium water requirement once established. (Scale: 2-drops from 3) It is grown over garden trellises from the ground or in post and can be trained along fences or against a wall with support.

'Teterarose' 
This deciduous climber produces larger flowers otherwise it is simular to the species.