Schweiger Vineyards has 35 planted acres of Cabernet Sauvignon, Cabernet Franc, Merlot, Petite Sirah, Malbec, Pinot Noir and Chardonnay. Grapes grown at the top of the slopes surrounding the Napa Valley present unique challenges; for instance, terraces too steep for a tractor. However, those same steep terraces also provide the drainage to produce smaller berries with thicker grape skins to produce the highest quality wines.