A little-known group of avocado varieties, originally from the mountains of Mexico, can handle winter freezes much lower than commercially grown avocados, down to 15 to 18F (-7 to -9C). These varieties tend to have medium to smallish fruits with outstandingly rich flavor, some of the best tasting of any avocados. These cold-hardy Mexican avocados … More Cold-hardy avocados workshop with Oliver Moore, July 29