According to DATCP, Wisconsin ranks 4th in the nation behind Vermont, New York, and Maine in production of maple syrup. Three trees are predominately used to produce maple syrup: the sugar maple, the black maple, and the red maple. Maple trees are generally tapped between mid-February and mid-March when the sap begins to flow. Rediscover this awesome sweetener with local expert, Joe Zawacki, from the comfort of your home.