At TableMatters.com, Shelby Vittek goes over "old vines," a term often associated with zinfandel.
Vittek writes that old vines have a reputation for producing wines far more complex and mature than what is attainable from rookie vines. "The belief is that the older the vine, the more concentrated the fruit's flavor will be, and the better the wine it will produce. Putting the phrase on a label indicates something grand and desirable. Or at least that's what producers who are lucky enough to have old vines want you to believe."