Vertical Mulching to Help Declining Trees in Brisbane and Beyond

artificial hollow brisbane
The Creation of Hollows in Trees in Brisbane and Beyond Part Two
February 23, 2018
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Deep Root Aeration Brisbane

Stress Hurts Trees

In normal circumstances trees are adept at creating a successful healthy root system which provides them with vital nutrients and retains enough water to enable their tree health. However, in certain circumstances trees can find themselves under extra stress when they are in competition with nearby grass which robs the trees of its vital nutrients and moisture. Herbicides that are used on lawns to control weeds can also stress the tree which will unfortunately reduce the tree’s lifespan.

Another source of stress for trees is soil compaction. If soil is heavily compacted around a tree then it can cause a number of issues leading to the ultimate decline of a tree:

  • Poor growth and reduced number and size of leaves
  • Branch die back
  • Susceptibility to pest problems and environmental stress
  • Failure of tree to respond to proper care




Deep Root Aeration

Vertical Mulching is also known as Deep Root Aeration and is a technique used by Arborists to address the common problem of compacted soils. Deep Root Aeration is the practice of digging holes in the compacted soil and then back filling with an organic matter. This practice has been proven to be highly effective in lessoning a tree’s visible signs of stress. The easiest method to carry out vertical mulching is by using Vacuum Excavation to safely dig the holes close to the tree roots. By utilizing a high-powered Vacuum Excavator wand to penetrate the hard and impacted soil with water instead of digging holes manually, saves time and the physical impact of hard, manual labour.


Where To Dig the Holes?

  • Using the tree’s canopy as a guide, the holes are dug approximately 1- 1.5 metres apart at a depth of 750 ml.
  • Once the hole is excavated to the required depth then the Vacuum Excavator hose will suck the muddy water back to the Vacuum tank to be disposed of later.
  • The Vacuum Excavator Operator/Arborist is then able to backfill the holes with a substance that is optimum for drainage and allowing the water to filter into the root plate such as river gravel. This allows future rain water/ moisture to penetrate tree roots much more easily and encourage tree health.


Using Vacuum Excavation to work with trees

Vacuum Excavation and tree work go hand in hand. It can be a very useful tool for an Arborist to be able to dig quickly, accurately, and efficiently while also having the assurance that the tree roots will not be harmed in the process. Growing in a hot climate such as Brisbane, Australia, often results in trees being surrounded by hard, impacted soil where enough water cannot penetrate the roots to deliver the required nutrients or unhealthy gases become trapped in the top soil. Vacuum Excavation can be used to easily dig trenches to insert a Root Barrier or for Deep Root Aeration.

vaccuum excavation and trees

Hire the Heritage Experts

Using Deep Root Aeration to help protect and revitalize stressed trees is will benefit your trees immensely. Our qualified and experienced Arborists can quickly identify signs of decline in trees and are able to advise whether or not ‘Vertical Mulching’ would be beneficial to the tree’s overall health and regeneration of the tree’s roots.  If you would like to talk to a tree care company who provide a quality and professional tree service, who understand the benefits of proper tree maintenance and have the best interests of the customer and the environment at heart, call the Heritage Tree Care experts on 0737155444 for a free no obligation quote.  We will be delighted to advise you on the best course of action for your trees.  We cover Brisbane, Logan, Ipswich, Redlands, Moreton Bay, Toowoomba and Gold Coast areas in Queensland, Australia.