Regent

Regent was created in 1967 at the Geilweilerhof Institute for Grape Breeding in the Pfalz region of Germany by Professor Gerhardt Alleweldt. The cross combined Diana, itself a crossing of Silvaner and Müller-Thurgau, with Chambourcin, a French-American hybrid. The resulting variety carried both Vitis vinifera genetics and the disease-resistance traits of American vine species. Experimental plantings began in 1985, variety protection followed in 1994, and Regent was officially released for cultivation in 1996. Its name pays homage to the Regent Diamond, a celebrated stone held in the French Royal Treasury.

• Parentage: Diana (Silvaner x Müller-Thurgau) crossed with Chambourcin
• Bred at Geilweilerhof Institute, Pfalz, in 1967
• Experimental planting from 1985; full release in 1996
• Named after the Regent Diamond of the French Royal Treasury

Regent is classified as a PIWI variety, meaning it carries strong resistance to the fungal diseases that challenge conventional viticulture. It demonstrates broad resistance to downy mildew, powdery mildew, and botrytis bunch rot, significantly reducing the need for chemical treatments in the vineyard. The variety is winter-hardy and particularly suited to cool, dry growing areas with long seasons. It performs best on well-drained soils, preferring calcareous substrates that are not overly acidic. Regent is a heavy bearer with an upright growing habit, producing medium-sized grapes and clusters. It is a mid to late-season ripener capable of reaching high must weights.

• Resistant to downy mildew, powdery mildew, and botrytis bunch rot
• Winter-hardy and suited to cool, dry climates with long growing seasons
• Prefers well-drained, calcareous, not overly acidic soils
• Mid to late ripener; heavy bearer capable of reaching high must weights

Germany remains the heartland of Regent, where it covered 1,754 hectares as of 2019, making it the country's most cultivated hybrid grape. It is most widely planted in Rheinhessen, Pfalz, and Baden. Beyond Germany, Regent has found success in other cool-climate wine regions, including the United Kingdom, Belgium, Switzerland, and cooler parts of the United States. Its disease resistance and winter hardiness make it a practical choice wherever sustainable viticulture is a priority and the growing season is marginal.

• 1,754 hectares planted in Germany as of 2019
• Primary German regions: Rheinhessen, Pfalz, and Baden
• Also grown in the UK, Belgium, Switzerland, and cool US regions
• Well adapted to sustainable and organic viticulture programs

Regent produces colour-intensive red wines that reflect its teinturier character, with flesh stained red alongside its dark skin. Wines are typically full-bodied with medium to high tannins, moderate acidity, and high alcohol levels. The aromatic profile centers on cherries, blackcurrants, cassis, and spice. Some producers age Regent in barriques to add structure and complexity. The variety is frequently used as a blending component alongside Dornfelder, Portugieser, and Spätburgunder, where its deep pigmentation and body add weight to the final blend.

• Teinturier grape with pigmented flesh, producing deeply coloured wines
• Full-bodied with medium to high tannins, moderate acidity, and high alcohol
• Aromas of cherries, blackcurrants, cassis, and spice
• Used both as a varietal and blended with Dornfelder, Portugieser, and Spätburgunder