Yes! We have no potatoes...yet...

[MiHale]

6. There are two kinds ...well kinda

Bocking 14 Russian Comfrey does not spread like common comfrey. I have the Russian, it is not invasive like common comfrey. But it is a bear to get rid of if you don’t want it in the area it’s growing in, any small part of the root that’s left in ground will give you a new plant.
I got mine from my sister…she didn’t realize that property of the roots. She bought a new house and started to redo the gardens…she tilled over the comfrey bed the previous owner had and chopped all those roots into smaller pieces each of which produced a new plant…boy was she pi$$ed. I was a beneficiary of her mistake as well as about 15 neighbors that I shared root with.

Both have the same good benefits but Bocking is not invasive. It is sterile and needs us to spread it.