And what is even worse, from a Green point of view, is that Sam imported foreign plant seeds into the Shire, which supplanted the indigenous growth and led to the creation of frankenflora.
Then there were other reprehensible developments as well which ultimately disrupted the social framework of The Shire.
It was the frankenfora which led to the disappearance of pipeweed and the concomitant loss to the GNP of The Shire as the pipeweed industry collapsed. This economic depression created conditions which allowed the development of the psychotropic mushroom industry, which then created an entire subculture of waistrel, destitute hobbits who became a drag upon the previous thriving culture of industrious and law abiding hobbits.
Furthermore, Sam's banning of the last remnants of the pipeweed industry--an attempt to shore up the frankenfora industry--referenced above by Squatter, led ironically to the development of the hydroponic hempweed crop culture. This nonnative habit had a deleterious affect upon those tweens who had thought that, in avoiding the psychotropic mushrooms in favour of hemp, they were indulging in a harmless socially-approved form of relaxation.
So pervasive was Sam's role in setting up these developments that samaceutical became a slang term for the gro-ops upon which these products depended.