Clematis 'Henryi' has
very large white flowers with contrasting brown eye. It does well
in any aspect and flowers June to September. Requires only light
pruning in spring. Generally reliable (it can be a wilter but is
a good grower and recovers quickly) one of the best white large
flowered hybrids.
Raised by Anderson-Henry of Edinburgh in 1870 and is a cross
between C. lanuliginosa and C. 'Fortunei' It has an A.G.M.