possible silver leaf?

Hi everyone. I'm new to this site and to gardening aswell! I recently bought a beautiful blue hydrangea which i have planted in slight shade acidic soil(clay).After about 2 weeks I have noticed the leaves are getting a silver sheen and also brown staining at the joints in the stem.I have researched and think this might be silver leaf although i can only find this disease mentioned in connection with larger trees such as fruit trees.Does anyone know are hydrangeas susceptible to this or have i done something wrong? Can i save the plant? Thanks.

 

My daughter has a similar problem, and I found few referenes to silver leaf disease except in fruit trees either. This was the best information I found:
http://www.which.net/gardeningwhich/advice/pests/factsheets/silverleafdisease.pdf

As your plant is new it's possible that it has been stressed in some way resulting in the 'false' silver leaf.

 

Silver leaf is a possibilty, hydrangeas are susceptible to it. Cut into the wood and if there is purple staining in the centre of the stem then that is it. Take it back to your supplier and whinge like mad. It can only have come from their lack of proper pruning and care.
If it is in an established bush all you can really do is prune back to wood without any staining. Hydrangeas do shoot from ground level, so you can be quite brutal.
Dip any tools used in bleach after use and before using on any other tree or shrub.

 

Thanks Liz and Palustris for your replies.I went to check straight away and cut 2 stems and although they are very thin there is definitely no staining inside. I notice now some of the silver is turning black but the flowers are still beautiful - I will keep an eye on it and maybe treat it to some mulch at the weekend.