Posts tagged with substrate

(II) Vertical gardens

12 April, 2013 No Comments

“Vertical gardens” are some sort of ecologic insulation for the building, adding more value to the facades or their interior. This type of garden can increase the property’s value.

Vertical gardening projects have been Bay-south-Singapore-1developed by teams of botanists, architects, designers and engineers, with the aim of reshaping urban spaces.

Their goal is to ​​decorate a home, an office, to provide a greater amount of oxygen to an area, or embellishing a facade, but always with the use of creativity.

The driver of “Vertical gardens” for more than 30 years has been the botanist Patrick Blanc (famous for its achievements worldwide).

Let’s take a look at an interesting contribution that was made during the Singapore Garden Festival by the Gardens By the Bay Project (shown in the following images), which built 18 artificial Supertrees, 25-50 meters high, each one covered with almost 200 species of plants. The supertrees also function as exhaust vents for the conservatories and as dining spaces.

One of the greatest vertical garden in the world is located in the Italian shopping center of Fiordaliso, Milan, embracing more than 40,000 plants.

garden 3It is particularly in the buildings covered by these vertical gardens where one could appreciate the difference of what we call “active walls”; which are those that join the building’s own air circulation system. There are a number of fans that blow air through the wall which then make this air to circulate inside the building, and thus increasing the oxygen levels. This system helps heal the so-called “sick buildings”.

This is a building they built in Vancouver.

garden 6
As we have seen in the photos above, the appearance is that of a regular garden, except that it’s in a vertical position. These buildings are usually developed in places where there is little or NO space to design normal gardens.

How it’s done?

The garden is planted on a wall using different sheets of a fibrous material anchored to the wall with coconut fiber substrate for the roots to grow. There are several techniques to develop these gardens: hydroponic, modular, sphagnum, pre-planted, etc

* Hydroponic system: the compost is administered to plants through substances in the irrigation process. The roots grow in an inert environment: nonwoven felt (polyamide, polyester ..) rockwool, and technical foams.

* Vertical substrate: the roots grow in a granular medium with organic percentage. The substrate mixture of perlite, arlita is quite high in order to achieve aeration, drainage and water retention. Nutrients are administered through irrigation.

For these gardens, the life of its plants will depend upon the interaction between water and the substrate.