Henry Kitchener was also a committed supporter of the organic movement and took up a role with the charity Garden Organic (formerly the Henry Doubleday Research Association - HDRA). Having joined the charity's founder, Lawrence Hills' band of enthusiasts in July 1958, as member number 171, Henry Kitchener became its president in 1973, a position he was to occupy for the next thirty-five years. In 2008, during Garden Organic's 50th anniversary year, Earl Kitchener left the organisation as president and was replaced by Professor Tim Lang. However Earl Kitchener remained interested in the organic movement and regularly wrote and updated the organisation whenever a subject arose that he felt passionately about.