Small Space Planter

Sorry for this quickie.  (I've a little dental saga for a couple of day.)
But in my pain killer daze I happened upon this:

Photo from Apartment Therapy

I wish I would've thought of this when I was a city apartment dweller. I longed for flowers or just something that grew in dirt when we used to live in a basement apartment. This seems like it would be highly customizable to your space. I'm planning on suggesting something like this to my mom who has a terraced yard with some "dead" spaces.

-Thea