Definitions for "Field Blend"
A common practice among the early grape growers in Sonoma County, where complementary grape varieties were interplanted in a vineyard. These grapes were harvested and fermented together, creating a field-blend wine.
It used to be a common practice to intersperse complementary grapevines in a vineyard; when all the grapes are harvested together, the resulting wine is often referred to as a field blend. Examples include many of the old Sonoma Zinfandel vineyards (such as Ridge Lytton Springs) where Petite Sirah was commonly planted with Zinfandel.
The name applied to a wine that comes from a vineyard that is planted to several different varieties and the grapes are harvested together to produce a single wine.