Winemaker Notes
With bold fruit flavors and accents of sweet spice, Grenache, Syrah and Mourvèdre form the base of the classic Rhône Red Blend, while Carignan, Cinsault and Counoise often come in to play. Though they originated from France’s southern Rhône Valley, with some creative interpretation, Rhône blends have also become popular in other countries. Somm Secret—Putting their own local spin on the Rhône Red Blend, those from Priorat often include Merlot and Cabernet Sauvignon. In California, it is not uncommon to see Petite Sirah make an appearance.
As one of Napa’s coolest sub-appellations, the area begs for diversity among its vineyards. Merlot and Chardonnay firmly compete with Cabernet Sauvignon for a place here. Some of Napa’s best Zinfandels also come from the Oak Knoll District.
Situated far in Napa’s southern end, Oak Knoll receives a strong cooling influence from both the San Pablo Bay and the Pacific Coast’s evening fog and breezes. Summer days are warm but on average ten degrees cooler than in St. Helena farther north up the valley; summer nights are chilly. A long growing season promotes for leisurely ripening of grape berries, resulting in an impressive balance of sugars, phenols and acidity.
Notable producers include Trefethen, one of the appellation’s oldest wineries, Robert Biale, legendary Zinfandel producer and Lewis Cellars, a family-run, hands-on establishment.