What is the most widely planted grape used for making Prosecco?

The most widely planted grape used for making Prosecco is Glera. This grape variety is the primary ingredient in Prosecco production and is known for its ability to produce light, fresh, and aromatic sparkling wines. Glera grapes thrive in the northeastern regions of Italy, particularly in areas like Veneto and Friuli Venezia Giulia, which are crucial for Prosecco. The grape's natural characteristics, such as its fruity and floral notes, contribute significantly to the distinct profile of Prosecco, making it a popular choice for sparkling wine enthusiasts.

The other grape varieties listed are used in different types of wines but do not play a significant role in the production of Prosecco, which sets Glera apart as the key grape for this particular wine style.