Real World Gardener Design Elements with Medium Trees

November 24th, 2014


REAL WORLD GARDENER Wed. 5pm 2RRR 88.5fm Sydney, streaming live at and Across Australia on the Community Radio Network.<?xml:namespace prefix = "o" />


The complete CRN edition of RWG is available on , just click on 2RRR to find this week’s edition. The new theme is sung by Harry Hughes from his album Songs of the Garden. You can hear samples of the album from the website


with Louise McDaid, landscape designer.

Trees in Landscape Design-Medium Trees part 3

Did you know that in one year a hectare of mature trees can provide enough oxygen for 18 people?

Batsford Arboretum photo M Cannon

Trees cool the city by up to 6°C, by shading our homes and streets, breaking up urban “heat islands” and releasing water vapour into the air through their leaves.

This design series is all about trees and last week it was about small trees –that means those trees under 10 metres.

So what’s a medium tree and do we have enough trees?

What can you do?

In a garden larger than a courtyard, or small urban space, there is a bit more leeway in how you use trees – you can of course still use small trees in places, but a medium sized tree will be more in keeping with the proportions of the site – a medium sized tree 10-12m is the most preferable for a regular size country town garden, the old quarter acre block


It’s likely you might have more than one tree – if in a group they could be the same species for the effect of a copse or glade planting, but they could be positioned in different spots to serve different purposes – so think about why you want the trees, what is their main purpose


Stowe, England photo M Cannon

Would you have thought that by just planting three trees strategically around a single-family home, you can cut summer air conditioning needs by up to 50 percent?

Not only that, by reducing the energy demand for cooling our houses, we reduce carbon dioxide and other pollution emissions from power plants.

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