Comfrey plants (Irby CH61)

I have some pieces of comfrey, ideal for an allotment or veg plot. You can use it to make feed or to accelerate a compost heap.
Please be aware this plant is very difficult to remove once you've got it, probably would grow in a pot, I've not tried it.
Collection from CH61.
Depending on the interest I can dig some more up.
Thanks.