Pont Max Juvenal, Aix en Provence (Patrick Blanc)

Quai Branly museum, Paris (Patrick Blanc)

We’ve been inspired recently by the ultimate urban gardening – living walls. More like artworks than the grassy roofs we’ve seen on libraries and the like, they add colour, pattern and movement to buildings, and don’t take up any floor space – a bonus in a busy city. Leading the way in ambitious designs is French botanist-artist Patrick Blanc, some of whose beautiful work is posted here. Layers of PVC and felt on a metal frame with an integrated, automated watering system, create an easy-care support for the plants, which is a boon, as we wouldn’t fancy the weeding much…

Pershing Hall hotel, Paris (Patrick Blanc)

Rue d’Alsace, Paris (Patrick Blanc)