Comfrey

Thinking of growing a patch of this behind the greenhouse. Getting conflicting info though :s I tried to post links, but I don't have enough 'likes' apparently :(

So, seedaholics says "given the opportunity to reseed itself, it will do so generously so do choose your location with care."

But an eBay auction by prettywildseeds says "since comfrey doesn't throw out creeping roots and hardly ever sets seed — it's remarkably non-invasive for such a sturdy being."

I did read somewhere that you can get sterile comfrey, is that perhaps where the confusion arises?
Oh, and can I plant now or should I wait till spring?

 

You want Bocking 14

 

Thanks for that, got some ordered. I hope I can get them growing to crowd out horsetail...

 

I've killed growth above ground with horticultural vinegar and will dig out what I can

 

I bought Bocking14 on Ebay myself last year, and took the precaution of growing it in large 12" planters.

This worked to a point, but after a few weeks it was clear it wasn't liking the planters, so just a bit of advice to plant it in the ground, not in a pot.

I can't remember whether I planted it out or disposed of it, as I've also got wild comfrey in my garden (behind the Greenhouse too), which isn't too much of a nuisance as long as I cut it back regularly and severely (I literally just cut off all visible growth)

 

Plant it where you intend to keep it for a long time. Don't do what I did and change your mind several times. I now have comfrey growing everywhere as a result.

 

Hmmm, I've started it off in pots cos I need to keep spraying any horsetail shoots. I'll plant out as soon as I can though. There's a gap of 3ft ish behind the greenhouse, so that's where it'll be staying for the foreseeable, nothing else could go there really...