Trefethen Family Winery is a unique stop just off the beaten path of Hwy 29 in the Oak Knoll District of Napa Valley. Their creed is “One Family, One Estate, One Passion” and this is evident in their excellent wines. For over 40 years they have made their wines without bringing in grapes from anywhere but their estate and this imparts a discernable terroir with each vintage. Their wine foil pays homage to winery matriarch Catherine Trefethen who was a passionate gardener and cook. It depicts a cornish flower that she grew in their gardens.