Sew a FRUIT FENCE Bag for your fruiting plant.

Fruit Fence planters clip on to city fences. These bags have been designed to support larger fruiting plants, about the size of a small bush. An internal water reservoir helps to extend the amount of time between watering. Depending on the plant, weather and construction, the water reservoir can hydrate the plant for 1-3 weeks. 

* Makes a bag that is equivalent to a 3 gallon container and is supposed to last for 1-2 years. The bag materials are recyclable.
* Full bag weighs about 30 pounds when watered.
* Bag dimensions can be altered for smaller or larger plants.

Suitable for blueberries, espaliered lemon trees and other dwarf varieties of 3-6 year old trees. Fruit bushes will require fertilization and pruning care, of branches and roots as appropriate for the plant. Small bags can support strawberries as well as many other plants.

Because these plants can clip on to fences, or railings, it makes it possible to use underutilized urban space, and to help plants access more sunshine.

There is a twitter-based communication service for your planters, you are welcome to create a hashtag for your planter and put it on your bag and use the service to log tweets related to the care of your plant, which you can share with a number of volunteer care-givers. Visit http://www.fruitfence.us to register your planter. Code is on Github and is build with nodejs, mongo and googledocs if you are interested in hosting your own service.

Learn more: www.fruitfence.us  @FRUITFENCE
I didn't think to weigh my ponderosa lemon when I harvested it (the tree was maybe 16" tall at most) but it was larger than any navel orange I've seen-theoretically they're a lemon crossed with a grapefruit so they are naturally really large. It made a tasty lemon meringue pie.

The slightly dehydrated navel orange that's been sitting on my counter for a couple weeks weighs 3/4 of a pound so a one pound ponderosa lemon definitely is realistic rather than an urban legend. I would have gotten fruit even earlier if the @#$%*&! squirrels didn't keep trying to eat them.  The problem with urban gardening is that the abundant urban wildlife is even more likely to make off with your harvest...and don't discount the two legged kind if you aren't planning an "open" garden.  When I lived in my last apartment I rarely was able to harvest any tomatoes as the other tenant and the landlord kept taking them before I could.  I don't mind sharing but please ask or at least let me know before raiding my garden.

I love this 'ible and will be playing with it.  I don't have much of a chain link fence for hanging and it's too quiet an area and not laid out well for an "open" garden but this would be a great idea for a community garden, especially one in a busier area.  It would definitely catch people's eyes as they went by and hopefully spark a bit of interest.
That's a great idea! I'd love to plant fruit!