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Tall, white-flowered, dark green leaves.
Softly hairy rosettes and large, bell-shaped pale blue flowers.
Arching stems with pink flowers along their length; from the Caucasus.
Mound of foliage with masses of pale violet starry flowers.
A mound of trailing stems with white bell flowers.
Striking, dark purply-blue flowers with wonderful hairy throats.
Large white flowers, closed at the mouth, eventually opening.
Pink flowers are closed at the mouth, then flare widely open.