Widely and successfully planted in California, this clone is known for its small berries and moderate yield. The wines it produces are typically dense and complex, with a highly aromatic, floral varietal character.
Coombsville itself is a bowl-shaped depression, cradled by a crescent-shaped section of the foothills of the Vacas Range, topped by Mt. George and Atlas Peak and flanked by the town of Napa and the Napa River. Most of the area was blanketed by volcanic ash from Mt. George. Alluvial flows covered the ash with cobble-stone strewn layers of rich loams. Pockets of volcanic soils and rocks pepper the landscape as well. The gravelly loams and rocky volcanic soils drain easily and the ash sub-soils hold water, which the vines can access as the dry growing season progresses.
101-14 has become widely planted in Napa and is currently one of the most popular rootstocks. This rootstock induces moderate vigor in scions and induces low yield-to-pruning ratios. 101-14 has a fairly shallow, well-branched root system and is best suited to moist, deep soils.
Coombsville weather is moderated by its proximity to the San Pablo Bay. Frosts are mitigated, fog covers settle more frequently and burn off later in the day than our neighbors to the North. The vines bud early and the grapes tend to be harvested later, making for a long, slow ripening period. Daily average high temperatures can be as much as ten degrees cooler during the hot months than most other appellations, and heatspikes tend to be less severe. All of this limits dehydration, preserves acidity levels, and generally aids even ripening patterns.