Clematis 39frances rivis39 is a reliable alpina clematis bearing pretty nodding bell45shaped flowers from mid45spring the gently twisted sky blue blooms contrast with pristine white stamens and are followed by a late display of fluffy seed heads a particularly robust spring45flowering clematis 39frances rivis39 copes well in exposed positions and needs virtually no pruning an rhs agm variety it is ideal for growing against a sunny wall or for training onto an obel