Avennia produces Bordeaux blends and single varietals from Columbia Valley, Washington's premier growing region. The winery's portfolio centers on Cabernet Sauvignon, Merlot, and Syrah—grapes that thrive in the region's continental climate and well-drained soils. Sestina Red, a Cabernet Sauvignon–Merlot–Cabernet Franc blend, anchors the lineup alongside vineyard-designated bottlings: Red Willow Vineyard Cabernet Sauvignon and Arnaut Boushey Vineyard Syrah. These wines have earned recognition from Decanter, Wine Enthusiast, and Wine Advocate. Columbia Valley's long growing season and temperature swings between day and night allow for full phenolic ripeness while preserving acidity and structure—conditions that shape the dark fruit intensity and textural depth characteristic of Washington's best red wines.