Norton

The grape takes its name from Daniel Norborne Norton (1794 to 1842), a physician and horticulturist living near Richmond, Virginia, who selected the vine and started propagating it around 1820. Its earliest printed mention appears in a nursery catalogue of 1822, and by 1830 it was being sold for winemaking. Norton believed his seedling arose from Bland, a labrusca-vinifera hybrid, crossed with Pinot Meunier, since both vines stood side by side in his garden. DNA testing in 2009 ruled out Pinot Meunier and identified a hybrid of Vitis aestivalis and Vitis vinifera, with the French variety Enfariné Noir proposed as a possible vinifera parent. In 2025, genomic work instead found traces of three species (aestivalis, labrusca and vinifera) and sketched a pedigree several generations deep that rests on Bland; the exact parentage remains unresolved.

An alternative story says Norton was a wild aestivalis vine found on an island in the James River by a Dr Lemosy. The dates do not support this, because Norton's seedling was already in circulation before the year given. Cynthiana, a vine reported from Arkansas and treated for decades as a separate variety, was shown in 2017 to be the same as Norton, through SSR marker comparison across 185 loci.

German settlers brought the grape to Missouri, and plantings near Hermann date back to the 1840s. A Norton from Stone Hill drew praise at the Vienna exhibition of 1873, and after phylloxera the variety was sent to France, where it adapted poorly to calcareous soils. Prohibition destroyed most vineyards; Norton survived in scattered plots and was revived in Missouri from the 1960s, with Stone Hill prominent in that effort.

Norton is a vigorous vine that does best in sandy or gravelly soils with good drainage and dislikes heavy or calcareous ground. Its bunches are small to medium and tight, and the berries are small and thick-skinned, covered in a blue bloom. Winter hardiness ranges from moderate to good, with damage typically starting somewhere between minus 23 and minus 26 C. Many fungal diseases are tolerated, although downy mildew is a moderate threat and birds are drawn to the fruit. Magnesium deficiency can appear, and dormant hardwood cuttings root poorly, so most vines are either grafted or propagated from green cuttings. Ripening comes late and calls for a long, warm season. Musts are high in both acid and pH, and elevated malic acid is a recognised winemaking problem.

Dry red table wine is the dominant style. Typical examples are opaque ruby to purple, with blackberry, black cherry and plum fruit, spice and a savoury, earthy edge, firm but rounded tannins and bright acidity that gives the best bottlings the freshness to age. Many producers put the wine through malolactic fermentation to soften the acid and mature it in oak, using either American or French barrels. Lighter, fruitier versions are bottled young, while serious cuvees are held for several years in barrel and bottle. Port-style fortified wines, rosé and sweet or late-harvest versions are made in smaller quantities, and some sparkling wines appear in Missouri. Cynthiana, as the same grape is labelled in Arkansas, tends to be bottled in a similar dry red style, with brambly fruit emphasised.