de las Luminarias since 1978. The Luminarias Festival became a Southwestern Holiday tradition featuring live music by the flickering lights of 8000 hand-lit luminaria. Volunteerism Volunteers were essential in the Garden's creation and development, when the staff was small and finances tight. These early supporters, including a few amateur botanists who donated their own plant collections, helped plan and execute plant sales, photography and art exhibits, and numerous public events. Volunteers remain a Garden asset, sharing their time, talents and professional expertise. They work closely with staff to maintain the Garden's status as a premier plant research institution and serve as members of the Board of Trustees, setting policy and governing the Garden. Gallery See also List of botanical gardens and arboretums in Arizona List of historic properties in Phoenix, Arizona List of botanical gardens in the United States References External links Botanical gardens in Arizona Butterfly houses . North American desert flora Phoenix Points of Pride Institutions accredited by the American Alliance of Museums Tourist attractions in Phoenix, Arizona Cactus gardens