Caitlin, thank you for your generous offer! and welcome to ATP!
So far my comfrey is doing pretty good in its new location. But it's nice to know where I can find some.
I add comfrey to my chickens feed occasionally or when available. I've known people who add comfrey as a forage food for livestock.
Here's an informative site you might like:
http://www.hort.purdue.edu/new...