Ghemme DOCG is produced in northern Piedmont, in the municipalities of Ghemme and Romagnano Sesia in the province of Novara. The area lies at the foothills of the Alps, influenced by Monte Rosa and the Sesia River. The mountains shelter the vineyards from colder air currents and, together with marked day–night temperature shifts, create a continental climate with a long growing season. Autumn mists and cool nights encourage slow, even ripening while preserving acidity and aromatic definition.
The vineyards occupy ancient glacial and fluvioglacial deposits. Sand, gravel, stones and clay alternate with mineral-rich, often acidic strata; in places, porphyritic and iron-bearing elements are especially significant. These well-drained, relatively lean soils restrain vine vigour and encourage small, concentrated berries. Site selection and exposure are fundamental to bringing Nebbiolo to full maturity in this comparatively cool district.
Nebbiolo, locally called Spanna, is the leading grape and must account for at least 85 percent of the blend. Vespolina and Uva Rara may jointly make up the remaining 15 percent. Spanna provides structure, brisk acidity, refined tannins and aromas of rose, violet, red berries, cherry, herbs and spice. Vespolina can add peppery lift and fragrance, while Uva Rara may soften and broaden the fruit profile.
In the vineyard, canopy management, pruning-based crop control and staggered picking are important for the late-ripening Spanna to achieve phenolic maturity in skins and seeds. Following fermentation on the skins, the wine is traditionally matured for an extended period. Ghemme requires at least 34 months of ageing from 1 November of the harvest year, including at least 18 months in wood; Ghemme Riserva requires at least 46 months, including 24 months in wood. Ageing in large casks or smaller oak vessels integrates tannin without obscuring the wine’s mineral identity. With time, Ghemme develops notes of dried flowers, tobacco, woodland, tar and balsamic herbs. Viticulture in this part of Alto Piemonte has deep historical roots, while the name Spanna reflects Nebbiolo’s distinctive local identity.