Spider - Garden Spider. (Araneus diadematus).

Spent a very enjoyable hour in the garden this morning searching for little beasties.

Spotted this spider on the cucumber plants in the greenhouse.  Still unable to identify it after searching on numerous websites.  Hoping one of you knowledgeable people out there will be able to help.

Thanks to  Journal1961 for identifying this as a Garden Spider (Araneus diadematus).  If you are into Macro photography, then I can recommend their journal.