Posted: 22/10/2012 at 12:03
I have a collection of about 35 to 40 Clematis plants of various different varieties, some of which are in pots and some are planted in the ground. My problem is this - they have all gradually deteriorated form lush healthy plants into sparsely leaved spindly plants, with many not flowering at all this year. The problems started about 3 years ago and since then I have re potted all the plants in their pots and mulched and fed all the plants in the ground. Please help as I would hate to lose my collection.