If it gets sun at least until noon, you could try Rudbeckia, Gaillardia, or Gaura. Society Garlic could also work.

I will make a note of these. Thanks a lot

Strawberry, having sun for half the day would allow you to use most perennials really, there are many, many to choose from.
I have 2 long borders with that criteria and i use most of them.
E.g. gaura, clematis, gerbera, iris, hemerocallis, roses, campanula, salvia, geraniums, epimediums, schizostylis, knifophia, penstemon, aquilegia, dahlias, veronicas, monarda, echinacea ....... the list is endless.

I haven't heard of society garlic before, not sure we have that over here.

Society garlic is Tulbaghia violacea, a member of the lily family and also a type of 'wild garlic'. It comes from Natal in South Africa.
I doubt that it would be perennial in the UK, but then, I have never grown it.
Actually, I see it's hardy down to minus ten so should be ok.

Ah, Tulbaghia, thanks Bertie.

Thanks Louise, i`ll be spoilt for choice

You're welcome, Strawberry :-)