Every week, Telegraph gardening expert Helen Yemm gives tips and advice on all your gardening problems whether at home or on your allotment. If you've got a question, see below for how to contact her.
Problems with the holly...
I have seven holly “lollipop” trees which were planted in 2013 with lavender along the side of a paved path. Four of them are in good health but the remaining three have, over a period of two winters, shed most of their leaves. They were watered and fed during the summer. Is there anything I can do to save them?
Gillian Cuthbert – via email
This answer is not going to be full of optimistic seasonal cheer, I am afraid. You describe, and your pictures bear witness to,...
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