[Zumthor] runs a small office from his mountain home in Switzerland; he doesn't give interviews by telephone; he rarely makes public appearances; and his projects—like the ghostly luminescent bathhouse he created for the Swiss town of Vals—emanate a high seriousness that could only have come from this oracle of the Alps. Yet recently, the typically solitary Zumthor has taken to palling around with another prominent designer: celebrated garden designer Piet Oudolf. — online.wsj.com

So who did Zumthor call upon to provide the garden, the green hortus at the centre of his conclusus? Piet Oudolf, of course, foremost exponent of the new perennials movement, a low-key Dutchman with the build of a rugby player who has practically cornered the market in high profile planting projects: the Lurie Garden at Chicago’s Millennium Park, New York’s Battery Park and the wildly popular High Line are among his best known works. — telegraph.co.uk