My DH got this contraption for Christmas from my sister. It is used to grow tomatoes in small spaces - upside down. Here it is on day 2.
DH has been nursing some Black Prince tomato seeds under lights and heating pads for several weeks and was finally able to plant one of the seedlings in our new upside down planter.
You put water in a dish at the top and there are wicks to wick the water down to the plants roots. It is supposed to be hung at least four feet from the ground and no staking is required. Quite interesting.
I will update in the future as to progress.
PS. in the bottom right is our fava bean crop.