Not entirely practical or even possible for most areas, but it does show great green design and some imagination. How ever you look at it, the what else? umbrella holder is quite the conversation piece.
I could see this being an easy DIY project for the front porch, where it would receive enough light to grow. Or possibly along the wall in a well lit mud room (one with ample light from skylights and windows). It could even double as a wheatgrass growing area for health smoothies, or a nibbling station for your cat! You could even plant a little herb garden in there for fresh cooking ingredients.
What do you think?