Clematis 'Ramona' is the American name for a plant which rejoices under the name of C. 'Hybrida Sieboldii' I prefer not to use its English name because of the confusion with an entirely separate plant (C.florida sieboldii) and because its a really ugly name and the plant is such a pretty shade of light blue! It flowers from June to September and prefers a bit of warmth. Light prune in spring.
Raised in Holland in 1874 by B Droog