Can't name it but it looks quite pretty, I'm sure someone will be able to help.
I've never seen one like that apart from pictures but could it be one of the Spirea's?
I agree, looks like Spiraea douglasii.
Hurrah, that's what I said! Thanks y'all.
it spreads by underground runners and can quickly become a flippin nuisance if not kept under control.
It isn't a budlea and yes it does spread as hostafan says ,takes some digging up too.
indeed they do take some digging out. Good luck. tee hee