I planted less than a month ago and they are already growing pretty big. Much faster than normal potatoes, which you can see in the distance in the pic.
These were planted in the raised bed which I’ve tortured strawberries in for several years. Strawberries weren’t happy, but the weeds loved it. So, I decided to do something else with it. I probably could have made a go of the strawberries by watering more and weeding regularly, but it is at the far end of the yard and not so convenient. Funny enough, some of the strawberries escaped the bed (like a sinking ship) and are growing happily in the pathway (with some almost ripe berries).