Avocado Tree 'Mexicola' (Persea americana)Cold Hardy Tree, Thin Skinned Avocado You Can Eat Whole The Mexicola Avocado Tree is a prized heirloom variety from northern Mexico, celebrated for its cold tolerance, buttery flavor, and unique edible skin. Unlike most avocados, Mexicola has a thin, glossy black skin thats tender enough to eat right along with its creamy, nutty fleshmaking it a one of a kind backyard treasure. Compact in size and highly productive, Mexicola tree is one of the best