My daughter has a hazelnut tree with lots of leaves, but all leaves are shrivelled, no hazelnuts. It is planted in a corner by a c
orne My daughter has a hazelnut tree in her garden, It has lots of leaves, but they are all shrivelled, and there are no nuts, It is located in a corner right by a corner concrete wall, What could be wrong with it ?
It would be difficult to tell what the issues is from your description. Have you tested the branches to determine if the tree has died? You can bend branches and if they snap and break off, they are no longer alive.
You can do a bark scratch test; as described in the link below.
Do you see signs of pests or disease?
This link will refresh you on the care needed for a Hazelnut Tree.