Cool! Thanks so much for your replies
Dove, there are similarities with the marsh marigold, in particular how the new leaves come up
I don't remember what mine looked like when it was younger.
Kimrose, I looked up Honesty as I have never seen one in the flesh and the leaves are similar but it seemed to be a biannual? This was sold as a perennial unless there are different forms, I don't know.
2, I'm happy with hosta.
3, Dove, it does look like a foxglove, I don't know why I didn't think of that. Probably because mine don't look as nice or healthy. It's quite fuzzy like a foxglove. I've levered it up as it was quite close to an allium and it's roots were pretty deep for something that only appeared this year.
4, I think I've solved the riddle of the cat wee! Welsh onion, you are right it smells stronger in doors, but I can smell it outside as well. I can't smell my own ribes. The smell I got in the first place wasn't by sniffing the plant- I rubbed a leaf and compared it that way- it's a funky smell but I wouldn't say cat wee. I didn't notice the plant stank on its own but that does smell like cat wee... So it's definitely a ribes, it's just thriving a lot better than the one I bought last back end, but that's sods law...
kimrose, I compared it with an astrantia too, but mine are still hugging the ground round here and this is about 6" tall.
Thanks all for your replies- that was quite exciting! Might look around for some more mysteries