Jere Gettle: Growing Heirloom Plants by Adam Taggart Jere Gettle runs one of the country's largest heirloom seed catalogs. His mission is to preserve long-standing plant varieties and combat the growing homogenization of our food stock, along with the genetic manipulation that Big Ag is responsible for. Jere Gettle: Growing Heirloom Plants by Adam Taggart Jere Gettle runs one of the country's largest heirloom seed catalogs. His mission is to preserve long-standing plant varieties and combat the growing homogenization of our food stock, along with the genetic manipulation that Big Ag is responsible for.