Roussanne is a white wine grape named after its skin colour, a reddish-gold that relates to the French word roux, which means "russet", or reddish-brown when is fully ripe. The variety is native to the northern Rhône Valley where it usually blends with the other main grape of the region Marsanne to create the great wine of Hermitage and the rest of the appellations in the north like Crozes-Hermitage, Saint-Joseph and in the sparkling wines of Saint-Peray. In the south part of Rhône Valley, it is used in small amounts in Châteauneuf-du-Pape, where it is one of 13 grape varieties allowed for use in both red and white wines. Roussanne is also found in the Savoie region of France known as Bergeron, and in small quantities in Australia and Italy. Most of the plantings of the grape in the United States are in the Central Coast, Sonoma, Napa and the Sierra Foothills regions of California. The Roussanne needs benefits warm temperatures and lots of sunlight hours to achieve full ripeness. The cooler climates have shown not great results as the variety has difficulties to grow and It is also sensitive to rot, diseases and wind damage.