 | Bonanza Clematis. Power Punch in Small Blue Blooms Blue Blooms in the Summer Disease Resisant Full Sun Vine Clematis Bonanza, Clematis 'Evipo031', is a newly developed clematis and part of "The Festoon Collection". This new Evison/Poulsen clematis is extremely free flowering from late June through September. The flowers of Clematis Bonanza are mauve-blue with pale yellow anthers and are 3" in size. Do not underestimate the flower power of this variety because of the smaller flower size! Bred for excellent disease... - Bonanza Clematis. |