who first decided a weed isn't a flower

gracie was three, sitting in the garden in the back of our apartment in noe valley, san francisco.
"i love your beautiful flowers," my baby told the landlady.
"they're weeds," said the landlady, who liked to get high while gardening on mondays.
"i love your beautiful weeds," said gracie.
"weeds aren't beautiful. that's why we pull them."

who first decided a weed isn't a flower
and told my three year old
so that she began to question her own idea of beauty?