The horseradish that I waterrooted is looking pretty good, and I am going to remove the little plantlets and finally plant them out.
I already removed 2 plants a couple of weeks earlier so in total this little piece of root gave me 5 separate plants. I could probably get more if I kept the root in water but 5 should be plenty.
Five little rooted horseradishes
I planted them in the permanent fruit and veg bed on the allotment. I am not too worried about it becoming invasive. One, I don't mind a good fat clump of this stuff. 2 I enjoy eating it a lot so it will need to suffer a lot of digging up some roots.