Mad Gardeners Mad Gardeners Welcome. Who We Are Mad Gardeners Inc. is an organization of professional horticulturists and serious home gardeners. The Corporation is formed for charitable scientific and education purposes including to promote and foster the appreciation and understanding of horticulture botany and related environmental and ecological concerns to conduct educational programs and forums to promote public education the development of students and the improvement of professional skill in the field to provide support to schools arboreta and other organizations qualified under section 501c3 of the Internal Revenue Code and conduct any other activities and perform any and all acts which may be necessary useful suitable or proper for the furtherance of the foregoing purposes.