Petit Verdot

The Petit Verdot is a blue grape variety that is among the best in the world. The grape, which has a thick skin, is very small and has a low yield. This when the grape already yields because because the grape ripens very late, it often happens that it does not reach full maturity. In terms of taste, the grape resembles the syrah: spicy, full and complex. The grape has a lot of tannins, so the wines in which this grape is processed often have a long storage time.

Source: Wikipedia