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Products > Vitis 'Roger's Red'
 
Vitis 'Roger's Red' - Roger's California Grape
   

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Habit and Cultural Information
Category: Vine
Family: Vitaceae (Grapes)
Origin: California (U.S.A.)
Flower Color: Greenish White
Bloomtime: Spring
Parentage: (Vitis california x V. vinifera)
Height: Climbing (Vine)
Width: 15-30 feet
Exposure: Light Shade/Part Sun
Drought Tolerant: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: <15 F
Vitis 'Roger's Red' (Roger's California Grape) - Deciduous grape native to central California. The dull green and gray leaves of this cultivar are transformed into great draperies of rich, scarlet red leaves in autumn. The edible fruit is small and purple the juice is very tasty but it has a large seed and a bitter skin so not one you eat very much of. This vine can grow 25-40 ft. tall in sun or shade. It is frost hardy and has low water needs. Insignificant flowers. Expect rapid growth. This selection made by Roger Raiche, who came across this unusual red specimen while driving in Sonoma County in 1983. This plant has been quite popular because it is both visually attractive, its fruit attractive to wildlife and because it was thought to be a native California plant; however recent DNA studies on this plant indicate that it is not a pure Vitis californica selection, as originally thought, but is a hybrid between our native grape and Vitis vinifera, the grape of commerce. In 2006 we were contacted by Dr. Les Goertzen in the Biological Sciences at Auburn University about supplying pieces of Vitis 'Roger's Red' and subsequent DNA sequences suggested that it is a hybrid. In the process they recovered a pure V. californica allele and a mixed cal/vinifera allele, apparently resulting from recombination. This combination suggested to Dr. Goertzen that it was a backcross of some advanced generation, rather than a simple V. californica and V. vinifera F1 hybrid. This was explained in the October/November 2011 issue of Pacific Horticulture in an article by Roger Raiche himself titled Vitis Roger's Red' This description is based on our research and the observations we have made of this plant as it grows in containers at our nursery, in our own garden and in other gardens. We also appreciate receiving feedback of any kind from those who have additional information about this plant, particularly if they disagree with what we have written or if they have additional cultural tips that would aid others in growing Vitis 'Roger's Red'.
 
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