The inhabitants of our cities have undoubtedly come down with a
gardening virus. Gardening is being propagated as the new sex. Wherever
one looks, a gardening euphoria is in bloom. We only have to think of
the riverbanks restored to their natural state, the urban gardening and
urban farming projects springing up all over the world, the green
skyscrapers (prospective and actually built) such as, for instance, the
utopian farmscrapers of Vincent Callebout, the conversion of former high
rail lines into green recreation spaces, the meditation gardens of Piet
Oudolf, and the vertical gardens of Patrick Blanc.