They are called Hardnecks because they have a hard central stalk from the base through the head of garlic. This produces a scape and generally a seed head near the end of growth. season. Hardnecks tend to have a bolder flavor, and a more complex taste. Many say they have a more true garlic flavor. Hardneck Garlic grows well in northern climates. We grow ours in Northern Ohio. We are in planting zone 6, but sometimes can have temperatures below zero for a week or more. Our hardnecks have survived.