I always wondered but I never got around to googling.

TL;DR answer: You can eat blue or green garlic—and it might even add a little extra flavor to your dish.

Why is my garlic purple?

Purple garlic is different from blue-green garlic (and its originating white garlic). In fact, it’s actually a different variety altogether, and that color variation is not just the result of a chemical reaction, Allrecipes reports. Purple garlic is “juicier” than its counterparts and boast a more mild flavor. It’s also (typically, at least) harder to get your hands on and available more so at specialty stores.