FEATURE
Green Walls
and needs to be cut back, periodically; Asparagus densiflorus ‘Sprengeri’ (an
indigenous Asparagus Fern); and the white-flowered Allium sp. Lockwood
added charming small plantings of mint, parsley and origanum tucked into
the garden panels.
Natasha Alexander of Pula Water Systems, the African stockist of the
Australian Atlantis Gro-Wall Vertical Garden System, explained that the
product used at the Rosebank Corner vertical garden was a modular system
made of high grade recycled polypropylene. She said it allowed for individual
plant access and provided targeted watering control of individual plants
through drip irrigation, enabling maximum watering efficiency
The system is easy to install and allows for both vertical and horizontal
system expansion, including last minute design changes. It gives easy access
to irrigation components and for other maintenance requirements. The Gro-
Wall is fixed directly onto the wall and is structurally strong with secure wall
anchoring.
Alexander described other general environmental benefits of the Gro-Wall as
being that it served as a thermal
insulator and a highly effective
sound insulator for buildings
because it carried up to 140L of
soil (potting medium) per m 2 .
She concluded by saying that it
would improve GREEN ratings
of building design and long-term
sustainability.
The potting soil utilised for
the wall was acquired from
Turfnet and is highly favoured
by Lockwood, who commented
that a really good potting soil
is essential for vertical gardens.
Lockwood mentioned that he
had found that watering from
top to bottom of green wall
systems was an important
consideration and, also, that
accurate measurements needed
to be taken at installation stage
so that the modules were level.
He said that even the slightest
incorrect level was exaggerated
over a distance and detracted
from the aesthetics of the planted
wall.
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