Gardening at limited area III

Creating a garden to add green open spaces of course requires adequate land. Hmmm … then how in the urban areas are largely filled by a high rise building? This can be tricked by creating a garden on the roof or commonly referred to as a roof garden.
Roof garden can be made either on the roof of a house, office buildings, and hotels. Park like this could be an alternative to creating a green open space to replace the plants were taken over by the construction of buildings which are prevalent in large cities. The presence of a roof garden can add a natural shade and freshness, and can serve as an absorber of toxic gases.
As the vines have benefits that can absorb gases acetate, ammonia and other gases so that the plant is an option that is widely used to create a garden on the roof or roof garden. Well, how do I build this garden yes?
Usually before the roof garden is made, shall consider the construction of the roof of the building first because the garden on the roof must be supported by a strong roof structure. So keep in mind whether the roof of the building is designed to support the burden of growing media such as land and trees will be planted on it or not.
Moreover, the existence of garden on the roof capable of causing the load increases. As the barrow and the plant will increase the dead load, wind load, and additional water load on the roof of the building. It is therefore important to consider which plants will be used to the conditions and roof construction.
As for the planting medium, the composition should be light but has the ability to provide nutrients and moisture. For example, by mixing sand with wood shavings plus a layer of pine bark and fertilizer. The depth of planting medium for grass requires 20 to 30 centimeters, as well as cover crops. Meanwhile, shrubs and small trees require a depth of 60-105 centimeters. A large tree to a depth of nearly 2 meters.
Because the roof prone to leakage, so it should be made drainage that comes with a filter so that water flowing down does not bring with granular soil that could clog the drainage channels. To prevent damage to the waterproof layer, it is necessary plus a water-retaining layer to the plant roots do not damage the waterproof coating.
In order to plant the roof garden  can still survive, regular watering should be done either manually or automatically.
In addition coridor beside the house and the rest of the existing land could be used as a park
Side alley, as access to the rear of the house, it could be a beautiful area. In fact, there could be a center of attraction the whole house. Why not! Limited land was used as a simple garden interesting, even with a fish pond decorated with artificial walls.
Color sending certain signals to the brain. Thus, the easiest trick is to play the color. Red, yellow, brown, orange, warm character convey signals to the brain faster. Nature to attract attention. Meanwhile, cool colors (blue, green, purple) are able to visually blend with the landscape.
Place the warm-colored flowers around the house to make it as a focus. Furthermore, cool colored plants can be planted around the fence and the other outside corners. The result, created the illusion of eyes an impressive garden becomes more widespread.
Still less?
Small-leaved plants have a similar effect with warm colors. Meanwhile, broad leaves make shadow over a lot and make the effect disappear or fading. Put a broadleaf plant near the warm-colored flowers before, surrounded by small-leaved plants.
Finally, add a tall tree and a kind of thin pine. Be careful, do not plant tall trees and wide. Later you even more narrow garden deh.

Limitations of land does not become an obstacle in creating a garden to maintain the quality of healthcare is not it?