In 1996, with forty years of winemaking experience, Jim and Mary Dierberg’s dream of producing wines worthy of their 250 year plan became a reality. After a long search through France and Napa, while learning the craft and making wine in the mid-west, they discovered the potential of Santa Barbara’s cool coastal valleys. The family planted two estates -first their namesake Dierberg Vineyard and later Drum Canyon Vineyard – both under their DIERBERG label. These estates, along with the family’s iconic warm climate site Star Lane Vineyard, culminated in a trio of peerless properties in Santa Barbara County.
Today, the entire operation is one big family affair, with the Dierbergs’ grown children and their spouses intimately involved in the day-to-day operations of the vineyard and winery.
Bankers by profession, Jim and Mary are no newcomers to wine. Since 1974, they’ve owned the Hermannhof Winery in Hermann, Missouri, which was one of the United States’ most significant wine-growing regions prior to Prohibition. Located about an hour’s drive west of St. Louis, Hermannhof is one of America’s oldest wineries. The Dierbergs have dedicated the past 40 years to renovating the property and raising its reputation as a place for education and entertainment.
While the town’s history and charm brought the Dierbergs to Hermann, the region’s Midwestern climate cannot support the traditional European varietals that Jim and Mary have become fans of over the years. In the 1980s, the Dierbergs began looking outside of Missouri for a place to plant that passion. After realizing that properties in Bordeaux and Napa Valley weren’t suitable for their desires, they chanced upon the Santa Barbara area in 1996.
Dieberg Vineyard:
Thirteen miles from the Pacific Ocean in one of the cooler winegrowing corners of Santa Barbara County, Dierberg Vineyard is on the western edge of the Santa Maria Valley appellation and is comprised of Pinot Noir and Chardonnay. Perched on a mesa above the south bank of the Santa Maria River, the property consists of sandy loam soils, heavily infiltrated by the marine sediments of yesteryear and kissed by the fog from the Pacific.
Founded in 1997, the family planted twelve “heritage clones” of Pinot Noir (tracing back to Burgundy). This diversity of material is rare in California, and allows the selection and discovery of the ideal clones to build the backbone of DIERBERG Pinot Noir. Chardonnay selections were derived from marquis cuttings of historic Wente clones — and the closely related Clone 4 grape. These California-developed clones are high quality and low yielding, producing expressive but graceful Chardonnays by retaining fresh structure with delicious ripe fruit.
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Argot Napa Cabernet Sauvignon Sugarloaf Vineyard is made from 100 percent Cabernet Sauvignon.
Sugarloaf’s terroir continues to impress with its expression of classically-styled Napa Valley Cabernet Sauvignons — impeccably pure black and red fruit character; broad, rich, perfectly ripe tannins; classic Napa Valley notes of cigar leaf, eucalyptus, and freshly-tilled earth; and definitive complexities of clove, all-spice and bay leaf. Having assessed past vintages with a few years of age, we have come to greatly value the significant reward Sugarloaf delivers after a few years in the cellar.
From Block 6, an acre of fiercely steep, ferociously rocky hillside, located in Napa’s far south-eastern foothills, deeply affected by the cooling influences of San Pablo Bay. One of the latest harvests in all of Napa Valley each vintage. Mother Nature was kind to this site in 2019, being our most bountiful year here ever. With perfect set, and vines displaying great health, this normally stingy hillside delivered superlative quality, without restraint of yield. After a slow start in the Spring, 2019’s particularly warm September and October played beautifully to the vineyard’s strengths, and delivered a classic Halloween-time harvest.
Review:
"It is not often that you see a 100% Cabernet Sauvignon coming from this rising star, cooler-climate vineyard in south Napa. This wine comes exclusively from the low-yielding, steep, rocky "Block 6." Deep purple-black in color, the 2019 Cabernet Sauvignon Sugarloaf Vineyard needs a little coaxing to reveal wonderfully pure scents of blackcurrant cordial, juicy blueberries and ripe blackberries, plus suggestions of iris bulb, dark chocolate, molten licorice and cedar chest. The big, rich, seductive, full-on full-bodied palate is laden with ripe, energetic black berry layers, framed by firm, ripe, grainy tannins and seamless freshness, finishing long and perfumed. A stunning, true-blue Napa blockbuster with its own very evocative signature, this comes highly recommended! 175 cases were made. - Lisa Perrotti-Brown"
- Robert Parker's Wine Advocate (November 2021), 97+ pts
Grand Veneur Chateauneuf-du-Pape Rouge Les Origines is made from 50% Grenache, 30% Mourvedre and 20% Syrah
Matured in vats (grenache) and in oak casks (syrah and mourvèdre).
Deep and brilliant, purple-red colour. An exciting nose with aromas of black fruit (blackcurrant, cherry) spices and vanilla. This great aromatic complexity is found on the palate : the spices and ripe fruit appear with an elegant woodiness and harmonious tannins. The finish has good aromatic length and introduces a touch of liquorice and pepper.
A terrific Châteauneuf du Pape with great concentration and finesse.
Best between 2 and 20 years. Best to decant if young (less than 5 years old).
Soil type Extreme north of Châteauneuf du Pape. This plateau is made with a high quantity of red clay mixed with rocks. This area is considerated to be one of the best to produce rich and powerful red wines. By definition, LES ORIGINES will always deliver a great complexity and ageing potential. Winemaking & ageing Harvest is sorted by hand, destemmed and crushed. Fermentation temperature is controlled at 30°C. Vatting period of 18 to 20 days. Matured in vats (grenache) and in oak casks (syrah and mourvèdre).
Review:
"The full dry tannins shape the personality of this bold and crisp Chateauneuf. Aromas of dry earth, savory and black pepper. Seriously structured finish where the tannins need some time to resolve. A cuvee of 50% grenache, 30% mourvedre and 20% syrah. From organically grown grapes. Drinkable now, but best from 2025."
- James Suckling (April 2023), 92 pts