I was browsing around on succulents (since I'm a bit obsessed at the moment) and found this site: https://www.giantflag.co.za/ Basically what they want to do is plant succulents in the shape of the South African flag so that it can be seen from space! What a great idea! It will be the size of 66 soccer fields. I really like that plan.
Sounds like a fascinating project - for some reason, the link in your post wouldn't open for me, but I found this one: http://www.southafrica.net/blog/en/posts/entry/giant-flag-project-hailed-as-a-game-changer I love that they are planning on solar panels to be a part of the design.
