Does anyone know what this is?

[shoesaregood]

I have a few clumps of this popping up, it seems to be very fast growing.....does anyone know what it is?

Looks like a Californian poppy to me

Peony ?

Could be bleeding heart? Mine is coming up rapidly and looks very similar.

I think it's bleeding heart (dicentra) too.

It does look a bit like paeony leaves but those usually come up as quite distinctive red spikes before unfurling, don't they?

Oooh I love bleeding heart 😊

Peony according to dh.

Peony or bleeding heart, not sure which! I'm going with bleeding heart....