About Gnarly Head:
My first impression, as the truck pulled up to the eighty year old Zinfandel vineyards, was, "Wow, those vines sure have some gnarly heads!" Thus began a fifteen year love affair with the Old Vine Zinfandel.
The older Zin vineyards in California were planted before the use of modern trellising techniques and were "head pruned", meaning the shoots that eventually produce the grapes grow directly out of the head of the trunk. The resulting vines look more like a bush than the normally well-manicured rows of neatly trained along posts and wires – and they do have "Gnarly Heads".