Vertical Gardening

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What is

Vertical gardening is a gardening technique that utilizes various resources to allow plants to extend upward rather than grow along the surface of the garden.

What can be grownCucumbers, bell pepper, beans and tomato plants

What can be usedPoles, wires, stalks, trellis

Ideal location

a location with plenty of natural sunlight, rich soil, and a nearby water source

Important Tips

1. A simple wire cylinder known as a tomato cage works very well. The structure makes it possible to train the plants as they grow to wrap around the wires, providing the stalks with additional support for the heavier produce. Because the plants are supported by a horizontal structure, it is much easier to harvest the produce.
2. Along with running pole beans up a stake or trellis, it is also possible to make use of corn stalks. Since the stalks tend to be strong, the vines of the bean plants can be allowed to run up the stalks, effectively utilizing the same garden space to produce two different types of vegetables.
3. Have a shed or nearby storage area for all tools necessary to train creeping plants upward, such as a selection of trellises, stakes, and cages of different sizes. 
4. Use twine to tie vines in place as they run up and around the vertical support system  Standard gardening equipment, such as hoes, fertilizing equipment, and work gloves are also good additions to the contents of the vertical gardening shed.

With limited space, having a vertical garden is ideal

(http://www.wisegeek.com/what-is-vertical-gardening.htm)