Hi - I still have industrial quantities of comfrey plants for sale, despite having sold 70 plants already. They are non-seeding, so I think they must be the Bocking 14 variety developed by the Henry Doubleday Association. I'm selling them for £/€ 5 for 10 plants, and can deliver in Derry/Inishowen area. All money goes towards event costs incurred by Transition Derry. Comfrey is a wonderful organic fertilizer and healing plant. The links below provide information on the medicinal, horticultural and other uses of comfrey.