“Tomato-Growing Device Turns World of Gardening Upside Down, Had Appeared on QVC” [archive]
Making your own inverted planters
There’s a number of articles on DIY methods. One simple, effective way is to put a cherry tomato plant through the bottom hole of a plastic hanging planter, fill it with dirt and plant parsley on the top of it.
Some use plastic 2-liter soda jugs and mount them to stakes outdoors.
“Inverted Indoor Gardening” was a 2006 article on making an indoor planter according to this method. [archive]