One of the campanulas.

Hmmm. Well I thought it was, but the flowers are very tiny. ?.

its Jack by the hedge/ garlic mustard. I need to look up its botanical name though.

Alliaria petiolata is its botanical name. Its a biennial and seeds freely.

Thank you! It does smell of garlic ?

I have a lot of it in my garden. it is a good nectar source for many butterflies and bees.