I planted my beautiful red potatoes in 2 long rows with an equally long row of red Onion sets also from Holland Bulb Farms between these 2 rows. Now 23da later they're all 3 rows pushing 12' tall ! And Ive already covered the potatoes with a fresh layer of dirt and they're poking up again and a very dark, healthy green color. I couldn't be happier w HBF, great quality at a great price.