Hello Fishy (and Nikunj)
Yes and yes, It's an annual so let it seed if you want some next year
Madpenguin is correct on the main ID
I fear Dave might be as well but I can't see them clearly enough
I think a lot of people's trouble with seeds is too much interference. Let them get on with what they do best all by themselves
Worth remembering that cats and lilies co-existed for many years before media panic stories. Not saying there is no toxicity, just remembering all the lilies and cats that have passed through my life with no problem.
Crosswort, Cruciata laevipes, I think though I've never grown this one myself so can't be 100% certain
That's how I see them iamweedy, big roots, buds at the surface.
I think I'd hesitate top tackle a 30year old. Needs more muscle that I've got
Planting too deeply may be the source of that myth chrissie, One of my paeonies has been moved twice in 2 years, It's flowering now.
I read about how that story arose but I can't remember what it was
grass is grass as far as I'm concerned but I like to see a bit of clover and other broadleaves as well.
It will regrow from rather invasive roots tom. But, on the plus side, the bees will love the flowers.