Cold Hardy Avocado TreeCold Hardy Avocado Tree Homegrown Avocados, Even North of the Tropics Avocados from your own backyard its not just a warm climate dream anymore. The Cold Hardy Avocado Tree (a Mexicola type variety) tolerates temperatures down to 20F, making it one of the most cold tolerant avocado varieties available and a genuine option for gardeners in Zone 8 and warmer who thought avocados were out of reach. Rich, creamy, nutty flavored avocados. Bold, glossy