A very persistent stand of comfrey at our camp got me wondering about what it is good for, and why it is now regulated in various countries, including Canada, Australia, Germany, Japan, and the US. Can a plant with comforting folk names such as Knitbone, Woundwort, Healherb, and All Heal, really be all that bad? Why is comfrey mired in controversy?
I started my search at Herbs Are Special, an excellent place to find out about the plant’s history and constituents. I am going to summarize historical uses, the case against comfrey, and provide some pro-comfrey anecdotes.