[denizen467]

^ Just that compared to Madrid, many fewer kinds of plants can grow on a wall in Chicago because of the weather, particularly a wall that faces a windswept arctic space for a fraction of the year (also with no southern exposure). And even fewer if the wall is non-essential eye candy on a residential building, facing a highway and 50 feet above pedestrians, where funds are far less likely to be devoted to periodic upkeep than with a Madrid art gallery's marquee art installation facing a small urban public plaza. (If you look at how the artist, Patrick Blanc, describes his green walls, they involve a piping system soaking a felt-covered wall with a water and nutrients -- which seems like a popsicle waiting to happen here on LSD.) So, it's not that any kind of green wall won't work in Chicago, it's only that this photo isn't helpful in suggesting it will work in Chicago at Peshtigo. Not meant to be a big point; that's why the post was just one line.

Have large green walls been done successfully in Chicago anywhere for any length of time? It would be great, as there are quite a few massive blank walls in various parts of the city.

I wonder if Related added greenery to the parking podium's western facade too -- that faces the park and piergoers who are coming down Illinois, so it would almost make more sense there than on the eastern facade.