Once upon a thyme (yes, we went there), Madame Ficus ran a wildly popular indoor plant speakeasy beneath the cobbled streets of Montpetit—a fictional, vaguely French town where pigeons wear berets and every baguette is perfectly crisp. After the Great Terracotta Shortage of ’47 (don’t Google it, it’s not real), she emerged from her underground jungle with a mission: bring greenery and guffaws back to the people...