
Old vine (French:vieilles vignes,German:alte Reben), a common description onwine labels, indicates that a wine is the product ofgrape vines that are notably old. There is a general belief that older vines, when properly handled, will give a better wine.[1] There is no legal or generally agreed definition forold.
Grape vines can grow for over 120 years. After about 20 years vines start to produce smallercrops, and averageyields decrease; this leads to more concentrated, intense wines.[1] Diseases such as "dead arm" can also afflict old vines; in some cases, this further concentrating the juice. "Old vines" might apply to an entire estate, or it might mean only a certain parcel planted before others. In the U.S., the most common use is onZinfandel, because in California vineyards up to 125 years old are still bearing small amounts of prized Zinfandel fruit.
In a place where wine production is longstanding, it often means a wine whose vines are thirty to forty years old. Some wine makers insist the vines should be older than this. In newly established wine regions, twenty years might be old. The definition is further complicated by the fact that certain varieties simply do not have economically viable yields when they get truly ancient.

The oldest known grape-producing vine is aŽametovka vine growing inMaribor inSlovenia, which is known to have been alive in the 17th century; it produces only about 35 to 55 kilograms (77 to 121 lb) of grapes each year, which isfermented and put into about 100 miniature bottles.[2][3][4]
In theSouth Tyrol wine region of northeast Italy, a more than 350-year-old vine ofVersoaln planted at Castel Katzenzungen is being used to produce wine with the fruit of the old vine blended with the fruit of younger plantings to produce approximately 500 bottles a year.[5]
The oldest vine with a fully authenticated minimum age, and thought to be the largest in the world, is known as the Great Vine atHampton Court Palace in England. It was transplanted under the direction of LancelotCapability Brown to its current site in 1768. The variety is ‘Schiava Grossa’ (also called Black Hamburg, or Trollinger). Contrary to the normal expectation for old vines, it produced its largest crop ever in autumn of 2001, of 383 kilograms (844 lb).[6]
In theBarossa Valley of Australia, the world's oldest continually producing commercial vineyard that has been authenticated is believed to be the Shiraz vines atTurkey Flat inTanunda that were originally planted in 1847.[7] Block 42 at thePenfolds Kalimna Vineyard in the Barossa Valley contains Cabernet Sauvignon vines planted in 1888, believed to be the oldest Cabernet vineyard still producing wine.[8] The Barossa Old Vine Charter was established to protect the older vines in the region and prevent them from being removed from the ground.[9]
The oldest grapevine in America is the "Mother Vine" located onRoanoke Island.[10][11] The vine is believed to be the progenitor ofscuppernong grapes and was first recorded bycolonists in 1584.[12][13]

Because there is no objective definition, an "old vines" wine might or might not show any specific characteristics related to vine age. Generally, the more reputable the producer, the more likely it is to have veracity. Similarly, if a producer sells a "regular" and "old vines" bottling, it is more likely to represent a perceptible difference in character, if not necessarily in quality. In these ways, "old vines" is similar to "reserve," a term that also varies dramatically in its significance and in many countries and regions has no legal definition.