By Lpn
United Kingdom 
I have a clematis called avalanche which is covered in beautiful flowers,however the leaves have black spots on them and seem to bedrying out on the edges. can you advise me on a cure please.
2 May, 2012
Might have some kind of Leaf Spot - if its bacterial, not much you can do, if its fungal, spraying with a fungicide may help.
2 May, 2012