Sonoma One Block Challenge™ Field Day at The Donum Estate

The One Block Challenge (1BC) field day program:

• 9:00 a.m. - 9:15 a.m. —> Arrivals, welcome coffee + tea
• 9:15 a.m. - 11:00 a.m. —> Overview + Vineyard Tour + demonstrations of how to conduct simple baseline tests and get soil lab analysis for your own blocks.
• 11:00 a.m. - 12:30 p.m. —> Presentation + Panel Discussion + Q&A
• 12:30 p.m. —> Lunch (Optional and only available if pre‑ordered during event registration, with requests accepted until 8 April)

If you plan to enroll a block for the 2026 season, this is where you’ll understand the commitments, meet the regional 1BC team, and leave knowing what the next steps are. The One Block Challenge is open to all winegrowers and vintners, whether experienced or new to regenerative practices.

The One Block Challenge™, developed by the Regenerative Viticulture Foundation gives growers a low-risk, practical entry point into regenerative agriculture. Participants commit one vineyard block—or even a few rows—to trial selected regenerative practices. Each grower chooses from a regionally adapted menu that may include diverse cover crops, compost applications, removing herbicides, reducing tillage, and integrating livestock. Baseline and year-end soil assessments help participants understand the changes on their block and decide how to adapt the practices.

The One Block Challenge is now active throughout California, with cohorts in Paso Robles, Napa, Sonoma, Santa Barbara and Temecula as well as internationally in New Zealand, South Africa, Texas, and the UK.

The Regenerative Viticulture Foundation (RVF) is a UK-registered charity that advocates for the global transition to regenerative farming in vineyards. Its work focuses on translating science into practice and supporting growers in adopting methods that restore soil health, increase biodiversity, and strengthen vineyard resilience. The One Block Challenge exemplifies RVF’s broader work to accelerate the adoption of regenerative practices worldwide. RVF’s goal is for 10 % of the world’s vineyards to be managed regeneratively by 2035. Its mission is to inspire and empower the transition towards regenerative viticulture through science, communication, and support for growers. Learn more at regenerativeviticulture.org

Founded in 2001, Donum’s terroir-driven wines reflect the energy and complexity of some of the most celebrated regions in Northern California, including the Russian River Valley, Carneros, Anderson Valley, and the West Sonoma Coast. Donum was one of the first wineries in Sonoma County to achieve Regenerative Organic Certified® status for all of its estate vineyards, and is certified by the California Certified Organic Farmers (CCOF) association. Donum uses regenerative organic farming practices to cultivate a thriving environment where the vines can flourish. Located in the acclaimed wine region Carneros, nestled between Napa and Sonoma Counties, the Estate includes a contemporary winemaking facility and hospitality experience, an organic farm, and The Donum Collection, one of the largest publicly accessible private sculpture collections in the world. At the intersection of fine wine, sustainable farming, and world-class art, Donum connects a global community and creates holistic sensory wine experiences that have made it an international destination.

Event Venue & Nearby Stays

The Donum Estate, 24500 Ramal Road, Sonoma, United States

Concerts, fests, parties, meetups - all the happenings, one place.

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