What is a common garnish for a Gin and Tonic?

A Gin and Tonic is most frequently garnished with a lime wedge. This garnish complements the drink perfectly, as the acidity and brightness of the lime enhance the botanical notes found in the gin, creating a refreshing balance. The citrus flavor is a classic pairing that highlights the tonic water's crispness while adding an extra layer of flavor to the cocktail.

While other options like a cucumber slice or lemon twist can be used in different cocktails or for variations of a Gin and Tonic, they are not as traditional or widely recognized as the lime wedge. A cucumber slice might be more common in cocktails that specifically call for cucumber flavor, and a lemon twist is often used in gin martinis. However, for a standard Gin and Tonic, the lime wedge remains the definitive garnish that both bartenders and patrons expect.