Semi-nodding, flattish, pale blue flowers with yellow anthers. The tepals have a deep midrib with a pink-purple flush towards the base. The variety has received the Royal Horticultural Society's Award of Garden Merit. William Robinson writes in his book 'The Virgin's Bower' (1912), "The beauty of [this hybrid] cannot be described in words."

Group:	Late large-flowered group
Approximate height:	3.0 - 4.0 metres
Flowering period(s):	Jul Aug Sep
Aspect:	Sun or semi-shade
Pruning:	Hard prune (Group 3)
Raised by:	Francisque Morel
Country of origin:	France
Date raised:	1885
Parentage:	C. lanuginosa caerulea x C. viticella 'Modesta'
Other name(s):	Mis-spellings: 'Pearl de Azure'; 'Perle de Azure'; 'Perle de Arzure'; 'Pearl d'Azur'
Further detail:  Flower diameter: 8-15cm Tepals: 4-6; 5-7cm long, 3.5-4.5cm wide, rhombic, overlapping or gappy, tip and margin recurved Click here for the text of an IClS article about this clematis Database entry: 365