Broadly bell-shaped, nodding, deep blue flowers, outside violet-blue and more purple towards the base. Staminodes green-white to cream-white.

Group: Atragene group
Approximate height: 3.0 - 4.0 metres
Flowering period(s): Apr May
Aspect: Any aspect
Pruning: No pruning (Group 1)
Raised by: Gustaf Steffner
Country of origin: Sweden
Date raised: c1945
Parentage: C. macropetala x C. sibirica
Other name(s): alpina 'G Steffner'; macropetala 'G Steffner'

Further detail:

Flower diameter: 8-12cm
Tepals: 4; 4-6cm long, 1.5-2cm wide