Group 1: Early flowering - Flowers are produced from previous years growth. Prune after flowering to allow new growth for next years flowers.
Group 2: Early, large flowers - Flowers are produced on current years growth. Prune before flowering (early Spring).
Group 3: Late flowering - Flowers are produced on current years growth. Prune before flowering (Spring).
(the measurements given are across the flower when fully opened)
|Ascotiensis||3||Frost hardy||Single, bright violet-blue flowers (3½ to 5 inch) in Summer.|
|Barbara Jackman||2||Frost hardy||Single, blue flowers (4 inch) in Summer.|
|Bees Jubilee||2||Frost hardy||Profusion of single, deep pink flowers (4 to 5 inches) in early Summer.|
|Bill Mackenzie||3||Fully hardy||Late flowering, dark green leaves, yellow flowers (2½ to 3 inches).|
|Comtesse de Bouchaud||3||Frost hardy||Profusion of single, bright mauve-pink flowers (3 to 4 inches) in Summer.|
|Duchess of Albany||3||Frost hardy||Profusion of small, tulip like, single, pale pink flowers (2½ inches) in Summer and early Autumn.|
|Duchess of Edinburgh||2||Frost hardy||Double white flowers (3 to 4 inches) in Summer.|
|Edith||2||Frost hardy||Single white flowers (4 inch) in Summer.|
|Elsa Spath||2||Frost hardy||Profusion of single mauve-blue flowers (5 inch) throughout Summer.|
|Ernest Markham||3||Frost Hardy||Single magenta flowers (4 inch) in Summer.|
|Gipsy Queen||3||Frost Hardy||Single velvet-purple flowers (4 inch) in Summer.|
|Hagley Hybrid||3||Frost hardy||
Single, rose-mauve flowers (3 to 4 inches) in Summer.
|Henryi||2||Frost hardy||Single white flowers (5 inches) in Summer.|
|Horn of Plenty||2||Frost hardy||Single mauve-blue flowers (5 inches) in early Summer.|
|Jackmanii||3||Frost hardy||Profusion of single purple to violet flowers (3 to 4 inches) in mid Summer.|
|Lady Betty Balfour||3||Frost hardy||Single rich purple flowers (5 inches) in late Summer and early Autumn.|
|Marie Boisselot||2||Frost hardy||Single white flowers (5 inches) in Summer.|
|Miss Bateman||2||Frost hardy||Profusion of single white flowers (3 to 4 inches) in Summer.|
|Mrs Cholmondeley||2||Frost hardy||Single light blue flowers (4 to 5 inches) in Summer.|
|Nelly Moser||2||Frost hardy||Single rose-mauve flowers (5 to 6½ inches) in early Summer.|
|Niobe||2||Frost hardy||Profusion of single deep red flowers(4 to 5½ inches) throughout Summer.|
|Perle d'Azur||3||Frost hardy||Single blue flowers (3 inches) in Summer.|
|Proteus||2||Frost hardy||Double mauve-pink flowers (4 to 5 inches) in early Summer then single flowers in late Summer.|
|Richard Pennell||2||Frost hardy||Single purple-blue flowers (4 to 5 inches) in Summer.|
|Star of India||3||Frost hardy||Profusion of single purple-blue flowers (3 to 4 inches) in mid-Summer.|
|The President||2||Frost hardy||Profusion of single, rich purple flowers (4 inch) with silver underneath in early Summer.|
|William Kennett||2||Frost hardy||Profusion of single lavender-blue flowers (4 to 5 inches) in Summer.|