Getting rid of alchemilla mollis from lawns.

Hello friends, they call me Big Ron Manager around my village. My lawn is getting overrun by alchemilla mollis. I tried the selective broad leaf weed killer and the non-selective type for brambles but neither had any impact. The roots are well woody and deep and would probably badly damage the lawn if I tried to dig them all up. Any suggestions? Thanks in advance.

 

Hi Bigron,

send it to me lol. I am surprised it hasn't been destroyed by a weedkiller.