Frontenac (grape)

Frontenac
Frontenac
Grape (Vitis)
	Frontenac grapes on the vine.
Color of berry skin	Noir
Species	50% Vitis riparia × 50% Landot noir
Origin	University of Minnesota
Notable regions	Germany
VIVC number	15904

Frontenac (French pronunciation: [fʁɔ̃tnak]) is an interspecific hybrid grapevine that is a result of research and crossbreeding by the University of Minnesota. It was grown from a crossing of the complex interspecific hybrid Landot 4511 and a very cold-hardy selection of Vitis riparia. It was released in 1996.

Frontenac gris is a white wine version of Frontenac, introduced in 2003. It started as a single bud mutation of Frontenac, yielding gray (thus named gris) fruit and amber-colored juice.^[1] Frontenac blanc was introduced in 2012 from white fruited mutations found in both Frontenac and Frontenac gris vines in Minnesota and Canada.^[2]

Vine and viticulture

The vines produce loose clusters of dark, highly acidic, high sugar berries. Frontenac is quite vigorous, cold hardy down to −35 °F (−37 °C), highly resistant to downy mildew, and resistant to powdery mildew and botrytis. Frontenac grapes are much smaller than traditional grapes, grow in tight clusters and produce a mild grape flavor.

Wine characteristics

Frontenac has been used for the production of dry red wines, rose, as well as for fortified wine in the style of port. The wines produced from Frontenac typically present aromas of cherry and other red fruits.

While producing a pleasing wine, the ripeness of the grapes is difficult to judge from sugar levels alone, and wine-makers are often challenged by its high acidity and atypical pH levels.

Frontenac gris wines present aromas of peach and apricot with hints of enticing citrus and tropical fruit. A brilliant balance of fruit and acidity creates lively, refreshing wines. Unique and complex flavors make this an excellent grape for table, dessert, and ice wines.^[3]

Initial trial vinifications of Frontenac blanc indicate that it produces wines that are distinctly different from Frontenac gris in flavor and aroma. The University of Minnesota plans to evaluate and characterize Frontenac blanc lines as they are made available.^[4]

Regional production

Although the grape has a very short history, its promise as a wine grape for very cold regions has led to many plantings across the northeastern part of the United States and Canada. The variety is one of the 4 most commonly planted wine grapes in Minnesota, with Frontenac gris, La Crescent, and Marquette.^[5]

References

^ "Frontenac Gris : Grapes: University of Minnesota". Archived from the original on 2013-04-08. Retrieved 2013-07-03.
^ "Frontenac blanc : Grapes : University of Minnesota". Archived from the original on 2013-08-15. Retrieved 2013-07-03.
^ "UM Frontenac Gris description". Archived from the original on 2013-04-08. Retrieved 2013-07-03.
^ "UM Frontenac Blanc description". Archived from the original on 2013-08-15. Retrieved 2013-07-03.
^ University of Minnesota Grape Website

[1] "Frontenac Gris : Grapes: University of Minnesota". Archived from the original on 2013-04-08. Retrieved 2013-07-03.

[2] "Frontenac blanc : Grapes : University of Minnesota". Archived from the original on 2013-08-15. Retrieved 2013-07-03.

[3] "UM Frontenac Gris description". Archived from the original on 2013-04-08. Retrieved 2013-07-03.

[4] "UM Frontenac Blanc description". Archived from the original on 2013-08-15. Retrieved 2013-07-03.

[5] University of Minnesota Grape Website

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v t e Hybrid grape varieties
Grape (Vitis) species	V. acerifolia V. adenoclada V. aestivalis V. amurensis V. × andersonii V. arizonica V. balansana V. barbata V. bashanica V. bellula V. berlandieri V. betulifolia V. biformis V. blancoi V. bloodworthiana V. bourgaeana V. × bourquina V. bryoniifolia V. californica V. × champinii V. chunganensis V. chungii V. cinerea V. coignetiae V. davidii V. × doaniana V. erythrophylla V. fengqinensis V. ficifolia V. flexuosa V. girdiana V. hancockii V. heyneana V. hui V. jacquemontii V. jaegeriana V. jinggangensis V. Kelungensis V. labrusca V. × labruscana V. lanceolatifoliosa V. lincecumii V. longquanensis V. luochengensis V. menghaiensis V. mengziensis V. monticola V. mustangensis V. nesbittiana V. × novae-angliae V. palmata V. peninsularis V. piasezkii V. pilosonerva V. popenoei V. pseudoreticulata V. retordii V. riparia V. romanetii V. rotundifolia V. rupestris V. ruyuanensis V. shenxiensis V. shuttleworthii V. silvestrii V. sinocinerea V. × slavinii V. tiliifolia V. treleasei V. tsoii V. vinifera V. vulpina V. wenchouensis V. wilsonae V. wuhanensis V. xunyangensis V. Yeshanensis V. yunnanensis V. zhejiang-adstricta
Notable hybrids	Agawam Alexander Aurore Baco blanc Baco noir Beta Black Spanish Blanc du Bois Breidecker Cabernet blanc Cabernet Cortis Cascade Cassady Catawba Cayuga White Chambourcin Chancellor Chardonel Chelois Clinton Concord Corot noir Couderc noir De Chaunac Edelweiss Flora Flot rouge Frontenac Goethe Herbert Hibernal Himrod seedless Ives noir Jaeger 70 Kay Gray Kyoho L'Acadie blanc La Crosse Lakemont seedless Landal noir Landot noir Léon Millot Malverina Marechal Foch Marechal Joffre Marquette Massasoit Melody Merzling Muscat bleu Niagara Noiret Norton Olmo grapes Onaka Orion Phoenix Plantet Ravat blanc Requa Rogers' Hybrids Rondo Royalty Seibel grapes Severny Seyval blanc Seyval noir Solaris St. Pepin Thomcord Traminette Triomphe d'Alsace Valvin muscat Vidal blanc Vignoles Villard grapes Zarya severa

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