Yeah. It's crazy how much they grow. Those rhizomes were from three plants that were probably four years old or so. The were grown in wine barrels that had the bottoms cut out and then flipped upside down so the wide end is the base (confusing, but you can see two of them in the picture). I have to start over every so often with my in ground plants because the mature trees around the yard will send roots up the planters and compete with the hops. That's one reason that containers have been so successful for me: no root competition and easier to control the soil.