My major in college was hort. about the time the pesticide applicator laws were passed. I also was working for a florist with locations in Pa. and NJ, so I tested and was licensed in both states. I prefer organic gardening but organic ornamentals not so much. The only flowers I eat are Nasturtiums and orchids served with lunch.
I did apply myself to the chemistry that applied to horticulture and medicine the other stuff is gone with the wind.