You need to stop it seeding, so cut off the pretty (and poisonous) red berries. In the lawn, a standard lawn weedkiller will see to them; in the borders, they're quite easy to dig out.
There are prettier and less invasive Alchemilla too. A, alpine, A. ellenbeckii, A. faroenssis (used to be called that) are all much nicer than the big leafed thug A. mollis.
Now I'm confused - I thought it was the one with speckled green leaves at ground level and stems of bright orange berries in autumn - what is that called, Ladies' what?
Lords and Ladies - thank you, Figrat! Yes, the arum.
I blame the heat for my addled brain
<img style="width: 297px; height: 244px;" title="Perennial Flowers Image Gallery" src="http://static.ddmcdn.com/gif/define-ladys-mantle-1.jpg" alt="Perennial Flowers Image Gallery" />
This is a picture of the plant - how do I stop it growing and taking over.
Roots are also very deep.
Apologies for taking the liberty to insert your pic onto my post GMcG26. This is the plant I had in mind when I responded to the first post. If you cut off the flowers before they go over it will minimise its self seeding habit, and as I said, I cut mine back to the ground at this time as the foliage starts to look a bit tired as well. Seedlings are easy to spot because of their characteristic leaf shape, and, as you have discovered, are much easier to remove when young. I suppose you could try glyphosate if they are too embedded to remove manually, but I do like to have some of them dotted through the garden.
I'm paying £10 for 4 plants to go in a bit of wild shade under some trees - I just hope mine is as tenacious and 'spreadable' as yours
Blooming heck. Come here and you can have a hundred for nowt!