Last year after watching a cookery programme I decided to try Jerusalem artichokes, I bought a pack a 20 tubers and they grew very well, far to much for us to use, so this year I selected 6 tubers to grow and carefully dug the bed to get rid of any stragglers, unfortunately I wasn't carefull enough and they are sprouting amongst my onions.
I am planing to cut any green sprouts that do appear in the hope that they will give up,
The question is will that work or does anyone have a better solution?