Plant ID please.

I always have lots of flowers in the house - and I bulk out the posies with ‘weeds’ like Valerian and Toadflax

No, Greyduster - it’s a weed! Toadflax. But I leave it to grow as I like it

I got rid of all my Alchemilla mollis because it self-seeded everywhere, in cracks between slabs, borders etc but it looks so lovely in that arrangement perhaps I'll have to buy some more seeds.

Mind you, I am hopeless at flower arranging, that looks lovely Lisagran.

Lisagran, what a very pretty vase of flowers, lucky you.

Like the arrangement, Lisagran. Is that purple plant salvia?

Wow, thank you ladies! They were mass planted and I thought they were stunning. I shall ask at the garden centre.

I had pink ones in the garden but they seem to have disappeared! The white ones are out just now - really useful cut flowers

I agree.
I once sowed some Astrantia seeds according to Gardeners World instructions, nurtured the few seedlings for ages, until they grew large enough to identify them as Willow Herbs! I had been giving lots of TLC to weeds!

It’s Astrantia - a lovely, useful plant