Athenaeum Hotel’s Eight-story Green Wall

magazine wrote about the eight-story green wall on London’s Athenaeum Hotel. Patrick Blanc, a French botanist, designed the wall, which includes 260 species and 12,000 actual plants. According to Wired, other projects from Blanc include interior green walls in Portugal and Kuwait that are larger than “four tennis courts.” 

The green wall is supported by a trellis. “A plastic-coated aluminum frame is fastened to the wall and covered with synthetic felt into which plant roots can burrow. A custom irrigation system keeps the felt moist with a fertilizer solution modeled after the rainwater that trickles through forest canopies.”

Given that the green wall is eight stories high, planting conditions vary at different floors. “The shade at ground level is perfect for rare Asian nettles; on the brighter upper stories, plants that usually cling to windblown cliff faces brave the blustery British breezes.”

Read the article and see more photos

4 thoughts on “Athenaeum Hotel’s Eight-story Green Wall

  1. Louisa Thompson 09/02/2009 / 3:27 pm

    I love the green wall idea, but as usual I see they are planting exotics. Why rare Asian nettles? Did anyone think about what would happen if they turn out to be well adapted? Aren’t there any cliff faces with similar microclimates in Britain?

  2. l4la 09/07/2009 / 6:07 pm

    “Asian nettles? Did anyone think about what would happen if they turn out to be well adapted?”
    i wonder a bit, too. But, if this species requires the (lower) wall’s conditions, there are likely no similar conditions nearby.
    Unlike california, brit natives should survive irrigation, so I’d expect some of the “260 species” are uk natives. I doubt will post the species list.

    btw, I expect integrated pv to crowd out greenroofs (though not crowd out roof *gardens*), but north-facing “greenwalls” could perhaps buffer some precip runoff, for which greenroofs are touted.

  3. Tyson F. Gautreaux 12/07/2009 / 1:57 am

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