Time to harvest the Jerusalem Artichokes, said to taste a bit sweeter after the first frosts. They don't store well so the best thing to do is leave them in the ground and dig them up as needs be during Jan/Feb/March before they start sprouting with new growth.

 They are ridiculously prolific. I dug over a square foot or so of the bed which yielded several kilos. The smaller ones I replanted, some of the bigger ones I'll cook with. I'll have to give a lot away. A couple of years ago I planted twenty of the knobbly tubers which begat hundreds. I returned several dozen to the soil; there will be sackfuls this year.