Every garden needs comfrey. It is so very useful. One way to use it is as a fabulous natural fertiliser for the kitchen garden. Here is one of the simplest ways I know to make Comfrey tea using just comfrey and water in under 5 minutes.
I have comfrey growing in various places throughout the garden - under fruit trees, near the compost, on the edge of the kitchen garden - an a couple in the midst of things like this one.