Sonoma’s Cline family is stretching its way into natural wines with the release of Farmhouse, a new label of inexpensive blends, one red, one white. While the wines are named and labeled in honor of a Petaluma farmhouse called Green String, where clean farming techniques are taught to Cline’s “interns,” the grapes used in the wine come from all over the state of California. Cline says the wines are made with “clean” standards, which means they are grown without chemicals (though the label does not indicate the grapes are organic).