So imagine that you are almost done cooking dinner.... and you open the fridge to get some green onions... and then you realize that you used them up the day before... Well, those days are over. Next time you use your green onions, keep the roots and the white part of the stem and put them into a tall glass with an inch of water at the bottom. Place the glass in the window and.... yes... you will ALWAYS have green onions on hand. Give it 10 days or so and you can start harvesting over and over and over again... It totally works!!