FASHIONS in gardening come and go like those on the catwalk, they simply take a lot longer doing so: sometimes decades. When I started unravelling the reams of previously little-known and rarely used grasses and perennial prairie plants that shot to fame in the late 1990s with the arrival of the Dutch designer Piet Oudolf, I don’t remember thinking that this northern European naturalistic planting would still be influencing British gardens 30 years on.
The point about Mr Oudolf is that he has an artist’s eye and an architect’s
