Winegrowers Supplies -  Vine variety information

Cabernet Blanc  (originally known as VB 91-26-1)

Mother: Cabernet Sauvignon
Father: Resistenzpartner (not known exactly)

A white Piwi/disease-resistant variety.

Year of breeding: 1991
Country of origin: Switzerland
Breeder/License holder: Valentin Blattner, at Soyhières in Swiss Jura
Number of clones:

Area planted in England:

Wine Character - white
                      - bouquet: fragrant aromas similar to Sauvignon Blanc and Cabernet Sauvignon. Paprika, blackcurrant and gooseberry aromas, also of citrus, apricots and apples.
                      - palate: between Riesling and Sauvignon Blanc. With the right maturity and optimal terrain, it develops a good minerality and acid structure.
                        "a real alternative to Sauvignon Blanc"


Time of bud-burst:

Strength of growth: strong, upright
Growth of side-shoots:

Flowering time:
Flowering strength: sensitive, always has millerandage (hens and chickens) which results in some unfertilised berries and hence very loose bunches

Leaf: - size:                 - shape:
        - colour: 
        - surface undulation:                - petiolar sinus:
          thinner than average 

Grape bunch: - size:                         - density: very loose
Berries:        - size: small                 - shape: round
                   - skin colour: before they are fully ripe, the berries are dark green and appear immature for a long time. When ripening begins in October, the fruits turn yellow.

Time of veraison:
Time of harvest: very late, thick skinned berries can hang on the vine for a very long time. Especially the seedless berries have a very high sugar content and good extract.

Grape yield:
Must-weight: high
Must-acidity: high

Wood ripening:
Winter hardiness: high
Wood colour:

Chlorosis resistance:
Resistance against: - Oidium: high                 - Peronospora: high
                            - Botrytis: very high         - Roter Brenner:
                            - Phomopsis                    - Stem-atrophy: 

Preferred soil:
Suitable rootstocks:

Normal stem height:
Normal row spacing:
Vine spacing in the row:

Winter Pruning:      eyes/buds per sq. metre of land occupied by the plant.

Advantages: very high quality wine, for very late harvest. High resistance against mildews.

Disadvantages: very late ripening.