Symphytum grandiflorum/Dwarf Comfrey in an orchard.

Does anyone have experience with Symphytum grandiflorum/Dwarf Comfrey?
I was considering it as a ground cover in an urban "food forest".
I want to grow it between the raised beds  it to suppress grasses, an as chicken fodder, green mulch, and bunny food.

Bumping my own. Post!

Just do it man. Then tell us all about it.

I have not tried the dwarf comfrey.  I have a sterile version of comfrey coming out my ears.  I plant it along borders and with every new tree.   Bees love it and it's a solid chop and drop.  There is nothing easier to propagate.

If you are worried about it taking over plant a small patch and see how it acts.

I recalled this post on the subject:

willowdale Hatfield wrote:I planted dwarf comfrey in an early permaculture experiment.  The dwarf stays under 18" and sends runners everywhere.  It was beautiful and lush, needing no care, bothered by no insect, but one plant did spread in 24 months to cover the 200 sf garden and another 200 sf of lawn.  I would the runners up in great fistfulls, very satisfying to toss those heaps in the compost bin.  I was the queen of comfrey.  But, yeah, I can see being frustrated by that behavior in a deliberate polyculture design.

I'll be planting Bocking 14 in the food forest I'm designing now. 

I wonder if it would be stopped by one of the Bocking varieties?  I use comfrey as a border in areas to keep other rhizome-spreading plants from invading and it works pretty well.  If the other comfrey could contain it, dwarf comfrey sounds like it would make a great ground cover.  I'd like to try it in an area to find out.  I wouldn't want to use it as ground cover in my entire food forest.  It sounds like it may crowd out all my other herbs and ground covers.

I don't have have experience with Symphytum grandiflorum/Dwarf Comfrey.  From what I read don't plant it if you don't want it to spread into the raised bed.
I do have this experience with the Boking varieties. In deep sandy soils it grows large deep roots and large leaves and flower stalks. In shallow clay soil it will persist but remain small and flower infrequently.
I do not understand the purpose of the proposed raised beds and paths between.  Comfrey is not an ideal plant to walk on though walking on it will perhaps suppress it  It is is an effective plant to maintain the border of a raised bed if it is the non reproducing hybrid.