IPalm trees in Napan Napa, you may notice a single palm tree planted at the front entrance of a locale. Some say that they are a welcome symbol for visitors, but legend has it that the trees were planted for an entirely different reason.

In the 1920s, Prohibition shook the nation and many Napa winemakers had a choice to make: stop the production of wine or sell it illegally. While some abandoned their wineries, others came up with ways to sell wine illegally.

Wineries that were still operating during Prohibition were marked with palm trees, and it was a secret that was shared between winemakers and wine drinkers. And now, it’s secret that we’re sharing with you.