It seems a lot of people are wanting comfrey for feeding goats, chickens, etc. We planted a 50' row of it for that and to use as a compost starter and to make a tea for fertilizing. Doesn't seem invasive here but it does multiply by divisions. We got ours as "roots" or small plants from Coe's Comfrey
http://www.coescomfrey.com/Coe...