The first potato plant appeared in February! Seems to have given up, though. One growing in the compost pile seems to be keeping going, and there's another one where I used to have a compost pile - over 10 years ago! - coming up quite nicely. I don't grow vegetables, I let them grow if they want to. I usually get a nice little harvest of new spuds from the compost. Why the other one has appeared is completely beyond me. (I used to have rhubarb, but at 1lb of sugar to 1lb of rhubarb to make it edible it was a waste of time. Took years to get rid of it.)