Sheegene-20
ActiveVitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. Common grape vine · Fruit crops · bred by INCONNU (FR)
also searched as: негретте
10 August 2026
The variety is a native of the Fronton region. Mature leaves are dark green, round, five-lobed or entire, with a shiny, blistered surface. Bunches are small, berries are small or medium-sized, round or oval in shape, dark blue or black in color.
The variety is of medium ripening period with late bud break. It is characterized by high sensitivity to Botrytis cinerea, powdery mildew, and pests, and requires mandatory tying due to its tendency to shatter. It shows the best results on gravelly, sandy, and sandy-loam soils with short pruning.
Wines from this variety possess intense color, low tannin and acid content, and have a distinct aroma of violet, red berries, and spices. The variety is intended for consumption at a young age and has limited aging potential.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 1035494
Records are sourced from official registry publications. Data sources and legal status
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Same species
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
Timothy P Sheehan, Sheehan Genetics LLC
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Vitis vinifera L. · Common grape vine
Nearby in the species list Nebbiolo N, Nebulus, Negra, NEGRAMOLL, NEGREDA, NEGRELLÓ, Négret de Banhars, Négret de la Canourgue, Négret pounjut, Negreta, NEGRO SAURI, Negroamaro, Nermantis, Nero d'Avola, Nero d'Avola N, Neronet, Netium N, Neuburské, Nielluccio, Niellucciu