Sebastiani produces wines across Sonoma County's North Coast, drawing from one of California's most versatile growing regions. The winery's portfolio spans both red and white varieties, with particular strength in Merlot and Petite Sirah. The North Coast Merlot, rated 91 by prestige critics including Wine Enthusiast, Wine Advocate, Wine Spectator, and Decanter, demonstrates the region's capacity for structured, age-worthy reds. A Petite Sirah aged in bourbon barrels achieves similar critical recognition at 90 points, adding oak complexity and depth to the varietal's natural power. On the white side, a Roussanne—the Rhône variety prized for its weight and texture—rounds out the range at 90 points. Sonoma County's cool coastal influences and warm inland valleys create conditions suited to both classic Bordeaux varieties and alternative grapes, a duality reflected in Sebastiani's selections.