Green walls are fashionable but many climates are not suited for them. If it’s hot and dry and sunny, you may be limited to stonecrop and succulents. I’ve never lived where they’ve been really practical. When I arrived in the northwest the wall in the picture was entirely bare and rather grim, something like a prison.
You’d never know it now! A jungle of vines has completely cloaked the bricks. There is a terrace at the top, over which the vines have surged like a wave to dangle down into their friends clawing up to the sky from below.
But this one is even more elaborate. Planter boxes plus elaborate trellising for the vines. This looks like a more recent installation and you can still see the supports for the plants. Once the things get going it’ll be crazily lush. This is a Mediterranean climate, rainy in the winter and dry and sunny in the summer. Plantings like this have to be watched carefully so that they don’t damage the wall behind them. But judicious planning makes it possible!.
This final wall is actually a skyscraper. It’s probably about 30 stories tall. The vines only go up maybe 7 stories. I have no idea what will happen if they get to the top! But they seem to be deciduous, dying down every winter. Notice also that the supporting rods are about 10 feet away from the glass skin of the building. This allows the windows to be washed, even opened.