Harrison produces wines from Rutherford, the heart of Napa Valley's Cabernet country. The winery's portfolio centers on Merlot, Syrah, and Cabernet Sauvignon—grapes that thrive in the region's warm days and cooling evening fog. The Merlot, rated 91.5 by prestige critics including Wine Enthusiast and Wine Advocate, anchors the range. A Syrah at 91.0 reflects the winery's engagement with Rhône varieties, while the Estate Reserve Cabernet Sauvignon, at 90.0, speaks to Rutherford's signature varietal expression. These wines demonstrate the terroir's capacity for structure and depth across multiple varietals.