Patrick Blanc creator of the 'murs végétals' was featured in a special report from the Chelsea flower show, London. The 'vegetative walls' is a really innovative technique designed to grow plants on vertical planes, one which he has employed on the exterior of Paris buildings,and is now an influence around the globe. A Frenchgardening.com report on the technique and creator can be found by following the link in this post. Having studied his technique it looks so easy you will wonder why you didn't think of it yourself.
The show gardens from the RHS Chelsea flower show can be seen here.
This little gem is on my wish list, look our for it in the Urban Oasis garden.