A horticultural industry is an organization devoted to the study and culture of cultivated plants.
Such organizations may be local, regional, national, or international.
Some have a more general focus, whereas others are devoted to a particular kind or group of plants.
They still have four shows a year in York, UK.
[1] They have a large archive of records, including the original members book dating back to 1768.The American Horticultural Society inspires a culture of gardening and horticultural practices that creates and sustains healthy, beautiful communities and a livable planet.