London's green walls

It seems natural to do some more posts related to green infrastructure and the Olympics, after all, it is the Olympics! How about taking a look at some of the green walls in London that you could see if you're there right now. Let's start with the most recent addition:

-The one above can be viewed close to the Eurostar Terminal. The creators of the wall, Biotecture, are one of the go to firms in England.  

-The Athenaeum Hotel's green wall, eight stories tall, is a Patrick Blanc project. There were more dramatic pictures to choose from and you can have a look at the hotel's website, but this one I was drawn to from a technical point of view, as you can see the wall looks somewhat sparse up close. Most green walls have the plants really packed in, there is no "dead space" to play with. But as you can see having plant upon plant is not necessary to create something absolutely beautiful.

-This one is for the people. Near the Westfield Shopping Centre, this 2010 green wall is still going strong. Of note, check out the irrigation requirements. 3 Liters of water per square meter every two days, for comparison the top picture requires about 2 liters per square meter per day. 

-The London Westminster hotel, formerly the Mint Hotel, had their green wall installed in 2011. It's currently the tallest in London, snatching the title from the Athenaeum. And a lot bigger too, more than 10 times the size.

-No list would be complete without London's National Gallery living interpretation of Van Gogh's "A Wheatfield, with Cypresses".

There are plenty more around London, when you're not taking in the Games or sights (if you are there post Games), see how many you can find.