A hop plant has 12 to 20 years of productive life. The above-ground parts of the plant die back during the Winter, but the root stocks survive. In good conditions, a root stock can grow about four and a half feet high and six feet wide. By early Spring, shoots appear on the root stocks. The young hop shoots are a culinary delight! In commercially grown hop plants, shoots are wound around wires in clockwise direction only, and are further secured to an elaborate network of posts and poles to train the upwards growth of the plant. A hop plant can reach a final height of 24, 25 feet. (beer and health)