Prima produces grapes very early and with a very nice taste.Bud break: Early to very early
Sensitivity to fungi and diseases: not very sensitive to botrytis.
Characteristics: Vigor: average. needs trellising
Production: Average to high.
Aptitude : stores and ships well
Cluster : Average, long, not very compact,
Berries: Average, ellipsoids, intense and uniform colour blue-black. Full colour is reached before full ripeness. Skin fairly thin. Firm and juicy flesh. Neutral but sweet and pleasant taste with not very noticeable seeds.
Ripeness: very early, 5 days after Chasselas.