The United States began as an agricultural society, then an industrial society, eventually a capitalist society. Through it all, Presidents and First Ladies have always been at home with nature. According to Andrea Wulf in Founding Gardeners.... "for the founding fathers, gardening, agriculture and botany were elemental passions, as deeply ingrained in their characters as their belief in liberty for the nature they were creating."
From the beginning...
PRESIDENTS IN THE GARDEN
30,000 British troops were approaching on warships, about to invade New York Harbor in the “Battle of New York” - George Washington sits down, takes his time and writes a letter to his estate gardener requesting him to plant a garden of native species only.