This gallery of vineyard photographs shows veraison of wine grapes in progress. The definition of veraison is the onset of ripening. This French word is used throughout the world's vineyards to describe the color change of red wine grapes, as they transition each summer from green to purplish-red. During this time, sugars begin to rise in the berries, and acids begin to decrease. Photos were taken between July 18 and August 3. You'll notice that Malbec grapes began veraison in mid-July; Merlot has been progressing at the same rate, and Cabernet Sauvignon veraison is also still in progress. Petit Verdot grapes are still green and will likely be harvested around the same time as our latest-ripening Cabernet Sauvignon vineyard--probably mid-October.