Many versions of self watering containers, also known as self watering grow boxes, self watering pots, and self watering planters are sold online, but you can make them yourself for a fraction of the cost out of some easy to find items. - Home And Garden
How to build the perfect raised bed: Rake the existing soil at the bottom of the bed to level it, then tamp it smooth. Line the bed with hardware cloth to keep out gophers and moles; trim the cloth with shears to fit around corner posts.
Patio Decor and Gardening / urban gardens, small space manipulation. No instructions, but good inspiration for taking a very narrow and challenging space and turning it into a tiered garden with vertical elements.