Sorbus reducta

I love this, its a very graceful shrub suitable for informal planting I should think?

Yes, it would look good planted informally. But can also look effective in a border as long as you are prepared to remove suckers on a fairly regular basis. I would imagine this could become invasive on light soils but in clay is more restrained

I've certainly got enough clay here, I thought it was bad when I lived in Cornwall, but here in Hampshire its dire!

I potted up some suckers last year to sell when the garden was open but none of them sold :-(

Are you certain this pretty plant is Sorbus reducta? To me, it looks a lot more like Sorbaria sorbifolia..

Kersha - I think you may be right. I bought it as sorbus reducta but the leaves make me think it may be what you suggest. I'll continue to investigate when I get a spare moment