Jospeph, I doubt it matters. We dug ours up to use the space for something else and some of the roots are languishing in a styrene box. Just keep the water up to them, keep any new plants shaded for a few days until it starts growing again. Comfrey although it prefers some shade and lots of water, is as tough as old boots and in this weather it will be shooting very quickly.
OK thanks Elaine. I'll give it a go.
Hi Elaine, thank you very kindly for the comfrey and a tour of your gardens!
I made this newer improved version of the comfrey juicer when I got home.
I also refreshed my knowledge on comfrey liquid. Its high potassium content means it's very good for non-acid plants such as tomatoes and beans (not strawberries). The nitrogen content in the liquid occurs as ammonium, which can inhibit the uptake of potassium and calcium in acid loving plants.
What I did in the past (when I had comfrey leaves to use) was to mix liquid comfrey (1:20) with chook poo soaked overnight in water. I used this on the snake beans. The plants grew huge leaves but also produced large crops. Now I don't know for sure if this is the direct result of the comfrey-chook poo but they were growing in pretty lousy clay soil at the time.