Vertical Backyards were a highlight at the Melbourne International Flower and Garden Show (MIFGS), 2009. What a difference to visit MIFGS this year and start to see the very genuine interest from designers, as well as the people to the show, in vertical gardening.
There is absolutely nothing new about 'walls' being built to house gardens at the show but this season, many of them were vertical gardens, dripping with living foliage.
In the recent history of MIFGS as it's known, we've seen a great focus on low water plantings and water harvesting/saving products and this year was no exception, there have been plenty of drought busting natives and various succulents as expected but what we should also saw this season was a very real trend towards keeping our outdoor living places lush and fantastically green rather than minimalist and Spartan, with loads of emphasis on vertical gardening and green walls.
A few of these green walls hugged around windows and doors, other vertical gardens were grown in combination with solar power 'wall space', others housed edible plants.
There was also a extensive research project of the Melbourne University Burnley Campus which was a living, green roofing, smothered with low growing vegetation proving that we space starved gardeners will contemplate growing things on just about any surface!
Imagine how much cooler the shed, or house for that matter, would be on a 45 degree day if covered with living or sod vegetation! No doubt the study will also show improved drinking water quality in storm run off as well as improved thermal properties.
Why garden vertically? So, is vertical gardening about gobbling up our greenhouse emissions, keeping our living spaces cooler or around creating our own green sanctuaries in the concrete jungle? Well, probably more than a touch of most those things.
There is no doubt that plants can play an extremely real role in reducing our garden greenhouse emissions and of course, ingest pollutants from the air while realizing life-giving oxygen.
There's a also a real benefit in the thermal properties of soil plants and media; it's true that you can keep your home cooler by 'insulating' it with a soil-filled living wall structure or vertical garden, in reality studies show an entire city's ambient heat range could be reduced by covering a share of its wall space and roofs with greenery as the heat-sink of elements such as masonry, roofs and bitumen are reduced and replaced with chilling foliage essentially.
Reducing the emissions caused by chilling and heating system, as well as the associated costs is pretty appealing to commercial endeavors, governments and home-owners alike.
Then there's that whole feel-good factor, green makes us feel better. People heal faster in hospitals with a garden aspect using their window, we know that efficiency is increased in building where greenery exists and these is also a role for plants to play in the reduction of certain airborne chemicals from our atmosphere from the microbial activity in the dirt mass media that the plant life grow in.
Vegetation are beautiful and make us feel good about being in an area and in these days of space-starved dwellings and high density living could it be any wonder you want to garden vertically to maximize the ground we have? Considering all these benefits and the fact that you can also eat the produce that comes from these vertical gardens or green walls its no wonder people are getting pretty worked up about the vertical garden idea.
So which 'vertical' garden is for you? There are a handful of systems around so you need to assess your situation. Some vertical garden systems are simply a framework that helps a lot of small pots, obviously these would dry quickly and need regular attention. Some vertical backyards or green 'walls' are slim and lightweight, working on a self-contained hydroponic type system making them like a 'arranged and neglect' living picture of small clumping and ground covering plants to hold on the wall structure.
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