Mexicola avocado tree, a cold tolerant, heavy producing avocado tree. No Avocado tree does was well be frozen, but Mexicola and Mexicola Grande will take a hard frost when established and bounce back with a very heavy fall yield of fruit. These trees grow fast and produce a lot when young. Mexicola is not a large tree, maybe 15ft if you leave it alone. Mexicola Grande can become a very large avocado tree, 30 feet tall no problem.