For a climbing rose, Zepherin Drouhin is one of the few that will grow in a North facing situation. It's pink, beautifully scented and thornless.
Hydrangea Petiolaris will grow north facing. I found it slow growing but have seen it doing well north facing in other places - so worth a try.
For ornamentals and edibles - lettuce should be OK, Busy lizzies, Begonia Semperflorens, Hostas, Welsh Poppies (?) - grew there for me, and so many more.
Hope you get them to do well.

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From each according to his ability, to each according to his needs.