While comfrey was mainly used in our history as a healing herb, and it’s from this history it gained its nickname ‘knitbone’ it also has a myriad of other uses as well.
# 1 Healing: it’s history speaks for itself and is knows to support the healing of bones and sprains, while Merck drug company is now also using it in their back pain cream, and it’s listed in the Cochrane review for both back pain and arthritis. To be honest as a easy growing little plant it hasn’t had the comprehensive research it deserves, as keep in mind most research is supported financially by companies that wish to benefit from that research, so my advice is test if for yourself – it supports me as the best all-purpose ointment I’ve come across, and I literally use it for everything….
# 2 Gardening: In the permaculture world it’s most often used a companion plant and as a mulch, in winter while the leaves go dormant the roots get into full swing by pulling up to them the rich nutrients into the surrounding soil, this of course in turn creates a soil which also benefits all the surrounding plants.
#3 Fertiliser: On top of this the leaves are incredibly rich in nitrogen, so are often chopped up or turned into a rich mulch to be fed back into the soil around the garden, this is a sure fire way to give your plants and amazing boost.
There are event stories about farmers feeding the wilted leaves to their cows that improved their health and milk production – which makes it in my eyes a little strange that it is seen as a poison in Australia (one of only 2 countries that give it a bad rap) – while there is little evidence to support this, there is much more overwhelming evidence of the benefits, and no known cases to date of anyone or anything being poisoned by it. So be sure to do your own investigations and make your own informed decisions. I highly recommend having some in your garden, and planting some in and around your other plants and see them all flourish.