What is this? (Pics attached)

[ilovewinterpansies]

Pretty sure this is a common weed as it's spread all over my garden but I saw some tiny flowers on one....any ideas?

I planted some bee bombs a couple of months ago and my garden has gone a bit mad......starting to regret it tbh!!

Oh I 'borrowed' some cuttings of this from my dog walking park (cemetery). They were growing on a grave and u think were actually planted there.

Very pretty and super tough! Might like lots of sum though?

Yeah, that's an aster, basically a wild michaelmas daisy, which is why it doesn't look as good as the pictures you're looking at.

Ah, an Aster it was.
Agree with @MereDintofPandiculation about it being a wild one. Still pretty though.

In that case I've been referring to a self seeding weed which looks like that with tiny pink flowers then a fluffy seed head in my garden as willow herb when it isn't.
The thing I've got that looks like that is definitely annual not perennial and springs up everywhere - in tubs, rockery, veg garden, cracks in paving etc. That sounds just like a willowherb except for the bit about it being an annual - willowherbs don't die after flowering, they stay around to bless you with their presence for years to come.

Could it be that you're assuming it's annual because it grows from seed? It's just a very free-seeding perennial.