Craig Stoller has 24 grape varieties planted at his RBZ vineyards in Paso Robles. Submitted photo Paso Robles wine region takes pride in its diversity, with more than 40 different grape varieties planted throughout 11 sub-appellations. At any given winery itâs not uncommon to see a spectrum of wines ranging from Bordeaux and Rhône style varieties to Spanish and Italian and, of course, Pasoâs heritage grape, Zinfandel, all produced under one roof. There are a few exceptions such as Windward, exclusive to Pinot Noir, or Clesi and Giornata, both focused on Italian varietals. Even in such a landscape of variety, winegrower Craig Stoller stands apart, establishing two wineries and a vineyard estate, each one dedicated to a specific style of wines expressing the spectrum and essence of the wine regions along Californiaâs Central Coast. These holdings span the counties of San Luis Obispo (SLO) and Monterey with a collective planting of 500 acres under vine.