Articles about the suitability and limitation of trees in the urban landscape. These articles provide an insight into the selection of tree species, planting and tree-care considerations.
It’s not about how many trees you plant as there are benefits in planting fewer trees. Financially and environmentally, it’s about how many trees succeed and get to do their job.
The Corymbia “Variegata” being grown by Trees Impact provide an exciting Spotted Gum alternative to the much desired but problematic, Corymbia maculata. What we know as “Spotted Gum” extends over a range from the South Coast of NSW to Southeast Queensland. It has been a long-favoured “Gum” for use in Read more…
For the trees we commonly grow, there is a wealth of information available which can provide estimates of mature height and, maybe, spread; but rarely is information offered about expected trunk diameter. Forestry texts will give estimates for forest-grown trees. However, these figures are unlikely to be representative of trees Read more…
THE PROBLEM Tree professionals are charged with the task of ensuring that the trees installed into our urban landscapes have the resources they need to thrive and be safe for the long-term. But, they are also frequently asked to install root barriers so that the developing roots will not adversely Read more…
Urban soils are generally disturbed, often compacted, and the soil chemistry is commonly less than ideal – so it is often not much use to trees. However, in urban situations the amount of soil trees can access is critical to their long-term success. If existing soils are not suitable (or Read more…
LOOK AROUND When you are next driving through an established part of Sydney, Melbourne, Newcastle, or any of our other major eastern centres (particularly just after a storm), look around you and note the trees that look to be the healthiest, the bushiest and make the greatest positive contribution to Read more…
Minimising damage arising from the interaction between roots and hard surfaces. THE PROBLEM As a tree grows the base of the stem expands (trunk flare) and the diameter of the primary roots increases, particularly close to the base of the stem. These two phenomena can result in the generation of Read more…
How do you compare different prices for what is, allegedly, “the same sized tree”? Is pricing based on container size fair? Is pricing by tree size more fair? What is “pricing by size”? Can “pricing by size” save you money? Pricing by tree size, as opposed to container size, offers Read more…
For the tree buyer/user, using AS 2303 and the concept of size index is an easy-to-use tool for assessing or comparing quality, compliance with specification and value for money between competing suppliers – given that trees are traditionally quoted according to container size only; and that tells us little about Read more…
To achieve tree planting objectives there is a minimum sensible size a tree should be – “The Practical Minimum”. This is determined by listing the factors that will influence trees planted, as well as the influence trees will have on the planting site, and then allocating an appropriate sized tree Read more…