We have a lot of Pulmonaria in the woodland but the problem is it is growing with ground elder.  I want to move it to other places in the garden but of course I do not want to move the ground elder as well.  So I have dug it up and spent some time trying to disentangle it from the burgeoning elder.  I have then split it and put it for the time being into pots so that I can monitor the progress.  I was pleased that the three of four clumps I dug up have given me now 21 plants but time will tell if they are residing in those pots on their own!