In The Roots of Flower City, Camden Burd explores the economic and ecological significance of Rochester plant nurserymen over the course of the nineteenth century. As the first boomtown in the United States, Rochester was an embodiment of nineteenth-century market economies and social reform movements. Connected to the eastern seaboard by the Erie Canal, the city's unique economic, cultural, and environmental conditions fostered and sustained a vast and influential commercial plant nursery industry that attracted the nation's most prominent horticulturists and nurserymen. Rochester-area nurserymen built parks and rural cemeteries, landscaped homes and schools, and promoted horticultural pursuits regionally and nationally. As their influence grew, many of these horticultural entrepreneurs developed into the city's elite and played a leading role in shaping Rochester's economic, social, and physical landscape. Most significantly, nurserymen enthusiastically participated in the American imperial project, selling and distributing fruit, shade, and ornamental trees, shrubs, and flowers across the continent, transforming landscapes and ecologies far beyond New York. The Roots of Flower City tells the remarkable history of Rochester's outsized influence on the homes, estates, towns, and cities of nineteenth-century America as it weathered economic downturns and competition from other regions. One threat, however, proved to be too much to overcome. As Burd details, the spread of the destructive San Jose scale through the transcontinental plant trade prompted federal legislation that would lead to the decline of the Rochester plant nursery industry in the last decade of the nineteenth century, ending a sustained era of success and ecological impact.