This grape’s genetic roots can be traced to modern-day Croatia, where it's known as Crljenak or Tribidrag; both Zinfandel and the southern Italian grape Primitivo are clones of this Croatian variety.

Why you should be drinking old vine wines from California. California has a wealth of historic vineyards, some planted as far back as the 1800s. Ancient vines, most winemakers feel, can impart a ...