Two years ago I planted some potatoes in the garden, and there was a good harvest. Last year, potatoes grew even though I didn’t plant any – I must have missed harvesting some of the previous year’s crop.
This year I dug the patch quite carefully and dug down deeply, looking for any missed potatoes from last year, and there were several.
Despite that, I must have missed some others, as potatoes have once again started to grow. I moved them into two rows, but yet more have begun to grow elsewhere.
It seems that I’ll have potatoes forever.