Small-Space Container Gardens and writer of the site Life on the Balcony, explains:
My grandpa grew up in the Depression, during a time when you didn't throw things out until you had absolutely gotten every single possible use out of a thing. That sort of mentality has never left my Grandpa. He saves everything. Yogurt containers and kleenex boxes line his workshop, organizing all of his nails, screws, twine, and extra wooden chopsticks (among other things). One of the things I found in his stash was a wooden wine box...it has now been converted into container for lettuce and parsley.Fern provides detailed instructions with photos that break the project down into simple, easy to follow steps.
Find the full instructions at Life on the Balcony. (Images: Life on the Balcony)