Winemaker Notes
Marked by an unmistakable deep purple hue and savory aromatics, Syrah makes an intense, powerful and often age-worthy red. Native to the Northern Rhône, Syrah achieves its maximum potential in the steep village of Hermitage and plays an important component in the Red Rhône Blends of the south, adding color and structure to Grenache and Mourvèdre. Syrah is the most widely planted grape of Australia and is important in California and Washington. Sommelier Secret—Such a synergy these three create together, the Grenache, Syrah, Mourvedre trio often takes on the shorthand term, “GSM.”
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.