Actually, those are herbs. They're rootbound, but the vertical garden looks nice.

FOLKEWALL: http://www.holon.se/folke/projects/openliw/openlev_en.shtml

Which spices go with which foods: 

http://pandawhale.com/post/16258/chart-showing-different-foods-and-what-spices-to-use-with-them

How to make a vertical garden:

More about vertical gardening:

There are also Urbio Wall Gardens: http://www.myurbio.com/

They were featured on Shark Tank, and they're pretty cool:

Related: SQUARE FOOT GARDENING.

But that's ground-based gardening not vertical gardening.

Read more: http://pandawhale.com/post/5506/square-foot-gardening

15 foods you can grow from scraps:

http://pandawhale.com/post/3695/15-foods-you-can-regrow-from-scraps