Clematis Beauty of Worcester was planted last year - appeared to be doing well, new shoots and flowers forming. Suddenly, within a week has gone very limp with some new stems and leaves going brown and flower buds just wilting. Some leaves have black spots, but not all. There are 2 other Clematis close by which appear alright, should they be treated in any way? Is there anything we can do with the one that is affected?
- 28 May, 2011