Has anyone tried using hounds tongue in place of comfrey? Like most I grow comfrey as a chop and drop bioaccumulator around trees and along fence lines. However, I live in an cold northern area that gets little precipitation (17in/y; 43 cm/y) and the comfrey struggles a bit. Hounds tongue on the other hand grows well and wild here. Thinking maybe I should try using it in place of comfrey. I'd chop it before it goes to seed.