Spring has (almost) sprung, and to celebrate, Chick-Fil-A is debuting a sub-lime new treat.

Just two days before the official first day of spring, the new Frosted Key Lime beverage will debut nationwide.

The hand-spun treat is a combination of the food joint's signature ice cream, lemonade and natural lime flavoring. It's described as "a fun twist on one of America's favorite pies."

The light-green coloring comes from a mix of nutrient-rich ingredients, including spirulina and turmeric, according to Chick-Fil-A's website.

Frosted Key Lime will be on the menu from March 18 through May 25.