Malibu Coast AVA

Viticulture along the Malibu Coast has a surprisingly deep history. The first documented vineyard in the area was planted on Rancho Topanga Malibu Sequit by Jose Bartolome Tapia in 1824, and in the mid-19th century, Matthew Keller planted hundreds of acres of vines in Solstice Canyon, naming his property the Rising Sun Vineyard. Prior to Prohibition, Los Angeles County was California's largest wine producer by volume, but nearly all county wineries were shuttered and the industry did not recover until the turn of the 21st century. The modern era of commercial viticulture began in 1985 when restaurateurs Michael and Kim McCarty planted The Malibu Vineyard with the guidance of Dick Graff of Monterey's Chalone Vineyard. The formal push for AVA status was initiated by Elliott Dolin of Dolin Malibu Estate Vineyards in 2011, with the petition submitted by Ralph Jens Carter on behalf of the region's vintners and growers. After a three-year review, the TTB officially established the Malibu Coast AVA on July 17, 2014.

• First documented vineyard planted in 1824 by Jose Bartolome Tapia on Rancho Topanga Malibu Sequit
• Matthew Keller's mid-19th century Rising Sun Vineyard in Solstice Canyon helped make L.A. County California's top wine producer before Prohibition
• The modern commercial era began in 1985 with The Malibu Vineyard, planted by Michael and Kim McCarty with Dick Graff of Chalone Vineyard
• AVA officially established July 17, 2014, after a three-year TTB review process

The Malibu Coast AVA is a long, narrow region stretching roughly 46 miles in length and 8 miles in width along the Pacific coast within the Santa Monica Mountains. It spans portions of both Los Angeles and Ventura Counties, bordered by the city of Los Angeles to the east, the cities of Oxnard and Camarillo to the west, and the communities of Thousand Oaks, Conejo Valley, and Calabasas to the north. The Santa Monica Mountains are oriented along an east-west axis, which is unusual for California, and rise from marine terraces at sea level up to a maximum elevation of 3,111 feet at Sandstone Peak in the western portion of the AVA. Small steep-sided valleys and narrow, north-south oriented canyons are interspersed throughout the mountains, and most vineyards are planted on the steep canyon walls and hillsides rather than along the shoreline itself. Within the Malibu Coast AVA sit two previously established sub-appellations: Malibu-Newton Canyon (established 1996, covering approximately 850 acres) and Saddle Rock-Malibu (established 2006, covering approximately 2,090 acres).

• Approximately 44,590 acres of privately owned land within the Santa Monica Mountains National Recreation Area
• Spans Los Angeles and Ventura Counties, running roughly 46 miles east-west and 8 miles north-south
• Elevations range from sea level to 3,111 feet at Sandstone Peak
• Contains two sub-AVAs: Malibu-Newton Canyon (1996) and Saddle Rock-Malibu (2006)

The Malibu Coast AVA benefits from a classic coastal Mediterranean climate, moderated by two contrasting air mass systems. During the day, moist Pacific Ocean breezes travel inland through the north-south oriented canyons, raising relative humidity to around 50 percent in summer and reducing heat stress on the vines. At night, the airflow reverses as warmer ocean air rises and pulls cooler, drier air down from the inland valleys, which helps remove excess moisture from the vines and canopy and suppresses mildew growth. This strong diurnal temperature variation is one of the AVA's most important viticultural assets: warm sunny afternoons build ripeness and flavor complexity, while cold nights slow sugar accumulation and preserve natural acidity. Growing Degree Day accumulations between 2005 and 2009 averaged 2,500 to 3,000 GDD annually, classifying the region as Winkler Region II to low Region III. The heat summation places the Malibu Coast in a high Category II to low Category IV of the Amerine and Winkler California Climatic Zones. The terrain creates multiple distinct microclimates: lower elevations near the coast receive morning fog that burns off by afternoon, while higher elevations enjoy earlier sunshine followed by cooling ocean breezes in the evening.

• Coastal Mediterranean climate with warm, dry summers and cool, moist winters
• Winkler Region II to low Region III based on GDD data from 2005 to 2009 (approximately 2,500 to 3,000 GDD annually)
• Daytime Pacific breezes raise summer humidity to around 50 percent, reducing vine heat stress
• Strong diurnal temperature variation preserves natural acidity and slows the ripening process

The soils of the Malibu Coast AVA are defined by their volcanic origins overlaid with sedimentary deposits. The hillside vineyards are predominantly composed of slate, shale, and sandstone, which are typically thin, stony, and well-drained with low fertility. Volcanic material is present throughout the AVA and contributes to the mineral character that distinguishes Malibu Coast wines. The poor, shallow soils stress the vines in a productive way, limiting leafy canopy growth and allowing sunlight to penetrate the fruit zone, which aids ripening while keeping the canopy dry and reducing disease pressure. The dry, stony soils also warm quickly during the day, providing a thermal benefit in cool evenings. The two sub-AVAs have meaningfully different soil profiles: Saddle Rock-Malibu contains Cropley clay, Gilroy clay, and Hambright clay loam on its high-elevation, leeward slopes; Malibu-Newton Canyon features different clay loam soils in its windward, ocean-facing bowl. Many vineyards in the AVA are planted on steep, south-facing slopes that maximize sun exposure, and the rugged terrain contributes directly to the characteristically small vineyard sizes found across the region.

• Volcanic terroir shot through with sedimentary influences including slate, shale, and sandstone
• Thin, stony, low-fertility soils provide excellent drainage and moderate vine stress for quality fruit production
• Saddle Rock-Malibu AVA features Cropley clay and Gilroy clay; Malibu-Newton Canyon has distinct clay loam profiles
• Many vineyards are planted on steep south-facing slopes to maximize solar exposure

The Malibu Coast AVA produces a diverse range of varieties reflecting its multiple microclimates and the ambitions of its small-lot growers. Syrah, Cabernet Sauvignon, and Chardonnay are the most widely planted and talked-about varieties, with Syrah often described as the leading red grape of the appellation. Merlot, Grenache, Viognier, Sauvignon Blanc, Sangiovese, Pinot Noir, and Mourvedre are also grown across the region. The microclimates allow both cool-climate and warm-climate styles to thrive simultaneously: Chardonnay and Viognier planted in cooler coastal zones tend to show zesty, ripe, tropical, and citrus character with lively acidity, while Cabernet Sauvignon and Syrah from warmer, high-elevation sites produce dry, full-bodied, fruit-forward reds. The combination of bright Southern California sunlight, reflective proximity to the ocean, and cool nights gives wines a distinctive balance of ripeness and freshness that is difficult to achieve in more sheltered inland regions. Winemaking takes place primarily at custom-crush facilities or at nearby Central Coast wineries, as there are no bonded commercial wineries operating within the AVA boundaries itself.

• Syrah, Cabernet Sauvignon, and Chardonnay are the most talked-about and widely planted varieties
• Merlot, Grenache, Viognier, Sauvignon Blanc, Sangiovese, Pinot Noir, and Mourvedre are also grown
• Cool lower elevations favor white varieties; warmer, higher-elevation sites favor bold reds
• Wines are produced at custom-crush facilities or nearby Central Coast wineries, as no bonded wineries operate within the AVA

In November 2018, the Woolsey Fire caused catastrophic damage to the Malibu Coast AVA. The blaze ignited on November 8 near Woolsey Canyon and swept from the 101 Freeway corridor all the way down to the Pacific Coast Highway, ultimately burning nearly 97,000 acres and destroying more than 1,643 structures across Los Angeles and Ventura Counties. Greg Barnett, president of the Malibu Coast Vintners and Grape Growers Alliance, reported that extensive damage was sustained by virtually all vineyards and wineries throughout the AVA. Several pioneering producers lost everything, while others noted that their vineyard blocks, which burn less readily than surrounding chaparral, acted as effective firebreaks and helped save structures. The Semler family's Saddlerock Ranch, a cornerstone of the AVA, lost approximately 95 percent of its structures. The fire underscored the wildfire vulnerability inherent in Santa Monica Mountains viticulture, while also demonstrating the remarkable resilience of the grower community. Many producers replanted and rebuilt, and the region has continued to attract attention from wine lovers and media. Several vineyards have noted that grapevines serve a dual role in the landscape, providing both premium fruit and a degree of fire mitigation compared to the dense native chaparral that surrounds them.

• The November 2018 Woolsey Fire burned nearly 97,000 acres and caused extensive damage to virtually all Malibu Coast AVA vineyards and wineries
• Saddlerock Ranch, a cornerstone producer, lost approximately 95 percent of its structures
• Several growers reported that vineyard blocks acted as firebreaks, protecting some structures from the blaze
• The community rebuilt after the fire, and the AVA has continued to develop and attract recognition