From Turley. . . "Though the vast majority of our wines are single vineyard designates, Juvenile is actually composed of a variety of young vines that have been replanted in several of our old vine sites. We tag the vine when we replant it so as not to mix the brand new vine with its much older neighbors, then pick these young vines separately and make a distinct wine. The vines that make up Juvenile range in age from about 6-25 years, and we pull from 18 of our best vineyards across California, including Hayne, Ueberroth, Pesenti, Salvador, Vineyard 101, Fredericks and Kirschenmann."