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181 Acres of Estate Vineyards


181 Acres of Estate Vineyards

Our expansive estate vineyards have flourished, expanding from the original 47 acres to the impressive 181 acres we see today. Every aspect of winegrowing is dedicated to showcasing the unique qualities of the terroir and the fruit from each individual vineyard block. Our viticulture and winemaking teams collaborate closely with the fourteen varietals cultivated on the estate, including Cabernet Sauvignon, Petite Sirah, Sauvignon Blanc, Sémillon, Malbec, Merlot, Petit Verdot, Cabernet Franc, Viognier, Chardonnay, Zinfandel, Syrah, Mourvedre, and Grenache Noir.

We invite you to explore five of our most celebrated estate vineyards that produce our award-winning wines.


Mother Vine Vineyard

The 1893 Concannon Margaux Mother Vine Vineyard is one of the most treasured Cabernet Sauvignon vineyards in California and the only vineyard of its kind in America. This vineyard is home to extremely rare, Concannon Margaux heritage clones propagated from extraordinary Cabernet Sauvignon that James Concannon imported from Bordeaux’s First Growth, Château Margaux.

In 1965, and from one of these remarkable vines, the “Concannon Mother Vine,” Jim Concannon and UC Davis developed the renowned Concannon Cabernet Clones 7, 8, 11. The Concannon Clones soon became the industry standard and played an invaluable, distinctive role in helping California and Napa Valley Cabernet achieve international recognition.

After the 1976 Judgment of Paris, the Concannon Clones quickly became an essential asset to the enormous expansion of Cabernet plantings that ensued from the 1970s to the present. Today, an estimated 80% of California’s 90,000 acres of Cabernet are planted to the Concannon Clones.

“The Concannon Cabernet vine chosen for heat treatment was selected by Dr. Harold Olmo and Mr. Curt Alley, both renowned for their visionary work in clonal selection. I think we owe them a great debt since many of their selections still stand up well to the best clones from around the world, with the Concannon Clones being an outstanding example. In this day and age, there’s an explosion of clones, but the solid clones that built the Cabernet industry in California are the Concannon Clones.”
-Deborah A. Golino, PhD, Director, Foundation Plant Services, UC Davis


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