Large mauve flowers with a slightly darker bar. Long tapering tepals with white filaments and purple-violet anthers. This distinctive cultivar is named after a small castle in the Bois de Bologne outside Paris where it has been grown for many years. Jim Fisk gave it the name 'Dorothy Walton' after one of his customers who found a specimen, un-named, in her new garden. It later became apparent that the plant was almost certainly 'Bagatelle'. However, the 'Dorothy Walton' name has stuck.

Group:	Late large-flowered group
Approximate height:	3.0 - 4.0 metres
Flowering period(s):	Jul Aug Sep
Aspect:	Any aspect
Pruning:	Hard prune (Group 3)
Country of origin:	France
Date raised:	b1930
Parentage:	Unknown
Other name(s):	'Dorothy Walton'; Wrongly: 'Drosy Wollten'; 'Drossy Wolton'; 'Dorothea Walton'
Further detail:  Flower diameter: 10-15cm Tepals: (4-) 6-8, gappy, pointed Database entry: 147