Posted: 27/05/2012 at 14:57
I understand Lady's Mantle to be alchemica molliis which has frothy lime green/ yellow floors in summer. You can reduce the amount of self seeding by cutting these off just before they go over. In fact I cut mine back to the ground, they soon put out rosettes of fresh green foliage. They do have quite tough woody roots, but they can be dug out, or carefully dabbed with glyphosate.