See more photos of this garden in a Flickr album. I call these "bubble" SIPs because they supply both water and oxygen. They are very easy to make. The simple plumbing made from recycled food containers costs nothing. See the how-to photos in the album.
This patio garden was designed for the specific purpose of demonstrating the water conserving benefit of sub-irrigated planters (SIPs). It could just as well have been a more traditional flower garden with displays like the gardens in Buckhannon, West Virginia.
Here are some more photos of spectacular flower displays in EarthBox SIPs. Most gardeners use EarthBoxes to grow tomatoes and other fresh vegetables but they work just as well for flowers. You could also grow them in homemade DIY SIPs.
The possibilities are endless. All of them are environmentally beneficial when compared to dumb planters with water-wasting drain holes. There is no reason for them, particularly when drought conditions are so widespread.
An EarthBox of geraniums growing next to a box of vegetables