I love the idea of being able to grow more food in a smaller space, especially now when we are still located in suburban Chicago. I came across these, and love the look of them. They can be extremely expensive to purchase pre-made, but luckily they should be simple enough to build yourself. You can either purchase plans though the company linked through the photo to the left or wing it off of the photo. If I ever get a spare moment, this would be a project that would actually be fun to do. These would work perfectly for berries, herbs and spices!
As an alternative for those of us with absolutely no spare time on our hands (this is me lately), you can also get something similar premade from Amazon.