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, 21:52, 20 May 2010
Upside-down gardening is when you hang a sack, bucket or other container of dirt, and plant things like tomatoes or cucumbers to grow downwards out the bottom of it. A popular brand of this is the Topsy Turvy planter.
There is an excellent Upside-down gardening [http://www.nytimes.com/2010/05/20/garden/20tomato.html article in the New York Times] we'll link to until someone can volunteer to write one here.