Vertical gardening is great for small yards. I currently am moving into a house that lacks the large yard. There is no way I could give up gardening so I came across some ideas that I wanted to share. 
 You can build a trellis as shown in the picture and hand pots along the way. Another great way to start a vertical garden is to use your fence and screw in plastic pots to the post. Not only does this allow you not to waste space but adds some décor to your once boring fence.