The Fullerton Arboretum, recently renamed to emphasize its educational and research mission, began in 1970 on land once home to California’s first commercial Valencia orange grove. Transforming from diseased groves to a vibrant 26-acre botanical garden, it reflects a journey from an orange grove to an urban oasis, backed by community and academic support. With a historic house, rare plants, and a commitment to environmental education, it showcases ecological diversity and conservation. This transformation underscores the Arboretum’s role as a community and educational cornerstone.