TOKYO — Perhaps it is a law of spatial gravity that when you cannot go out, you go up. What has long held true for urban architecture is now being applied to gardens, with Japanese landscape designers increasingly eager to requisition rooftops and walls to create gardens at higher elevations.
Sometimes it feels as though contemporary Japanese gardens can be read as message boards pointing to the near future. Substituting for hills and mountains, high-rise buildings are being requisitioned as borrowed scenery, while rooftop garden designers, conscious of weight issues, are resorting to hollowing out natural rocks, or replacing them with fiberglass equivalents.
AloJapan.com