Additional caption to be placed: Heirloom tomatoes, such as ‘Green Zebra,’ are open pollinated, meaning that if their flowers are fertilized by a plant of the same variety, the seeds produced will come true-to-type. Although this variety was not developed until 1983 and for some the definition of an heirloom includes being older than fifty years old as well as open-pollinated, I think it falls in the category tomato enthusiast Amy Goldman calls “the heirlooms of tomorrow.” 