This is one herb I will not be propagating. Woodruff is irresistibly pretty just now, and has a fresh elusive smell, which was valued in the days when floors were strewn with rushes. It contains a substance called coumarin, which helps to preserve the scent of other herbs when dried, so I’ll be including it in pot pourris later in the year. But it is a fiercely invasive plant, related to the less glamorous cleavers (known to many children as ‘sticky willie’) and  wraps itself round everything in its path. It needs no help from me – do you think it could out-compete ground elder? There’s only one way to find out —-