Clematis 'Denny's Double' is an outstanding variety with beautiful, large, double mauve flowers in May, June and again in September which eventually turn a shade of light blue. It will occasionally produce purple/green petals.
This non-evergreen climber can be grown against a trellis, garden fence, wall, arches, pillars, pergolas, clambering over tree stumps and through large shrubs or planted in a container trained up bamboo canes or an obelisk.
When Mr and Mrs Denny of Broughton near Preston raised seedlings from Duchess of Edinburgh, among the progeny was this amazing result.
Hardy plants, shrubs, and trees for your garden