Clematis, Late Large-flowered Clematis 'Lady Betty Balfour'

Note that this comment is not arbitrary, but in relation to many other varieties of Clematis:
I have observed this hybrid in the c...Read Moreollection of "loamy_lady." I am completely shocked by the longevity of its flowers, which have good substance and are stongly up-facing, with white bars on teh under-surface. The flowers are also in a position where they receive a great deal of sun and reflected radiation and heat, but still manage to individually last for weeks. A robust and vigorous plant to boot, this has to be one of the great Clematis hybrids.

Grown by George Jackman and Son in England. Named after a patron of his nursery. Awarded RHS Award of Merit.