On the 16 th of March I took the potatoes that have been growing in soil since the end of February. I carefully separated them from the mother/tuber. Then divided them up into individual plants. The ones that were tiny and had small amounts of roots were left on the tuber and returned to the moist potting soil in the box. I returned the parent tubers to the box too. They will regrow more plants. Then I will repeat the process, when they have at least 2 inches in height and some really nice looking leaves started.