It's the most popular form of marijuana wine:
[Crane Carter, president of the Napa Valley Marijuana Growers,] said cabernet, Napa’s main grape, is the variety of choice for marijuana-seasoned wine, and that fruit from the Stag’s Leap district is thought to pair particularly well with pot. According to Carter, pot wine delivers a quicker high than pot brownies, and the combination of alcohol and marijuana produces “an interesting little buzz.” He believes cannabis wine has a bright future in Napa. “People love wine,” he says, “and they love weed.”