I recently walked a property out near Canungra in the Scenic Rim Regional Council area. The owner was frustrated. He had a beautiful, steep gully that should have been a pristine pocket of native bushland. Instead, it was a tangled mess of orange-flowered chaos. Huge, brittle limbs were snapping off and crashing into the creek bed. The ground was a carpet of Other Scrub/Weeds and the canopy was entirely dominated by the Cockspur Coral Tree.
This owner had tried to tackle it himself with a chainsaw. Bad move. He quickly realised that Coral Trees are not your average timber. They are soft, wet, and incredibly heavy when full of moisture. They also have a nasty habit of regrowing from every single chip or branch left on the ground. By the time we arrived, he was looking at a hillside that felt completely inaccessible and dangerously unstable.
This is a scenario we see across the Gold Coast hinterland and Logan City Council areas every week. Property owners buy a piece of paradise only to find that the steepest, hardest-to-reach parts of their land are being swallowed by an invasive species that thrives on the very terrain humans struggle to walk on.
The Problem with the "Quick Fix" Mentality
The biggest mistake people make with Coral Trees (Erythrina crista-galli or Erythrina x sykesii) is treating them like a standard hardwood. If you fell a Gum tree, it stays down. If you fell a Coral Tree and leave the trunk in a damp gully, you haven't killed it. You’ve just planted a massive horizontal forest.
Every piece of a Coral Tree that touches the soil has the potential to strike roots. We have seen entire hillsides re-infested because a property owner tried to "tidy up" by pushing logs into a pile and leaving them. Within a season, those piles become vibrant, thorny thickets.
Then there is the safety aspect. These trees are structurally pathetic. They grow fast and their wood is incredibly brittle. On steep slopes, where the wind catches the canopy, large branches can drop without warning. This makes manual clearing with a chainsaw a high-risk activity. You are working on unstable footing, dealing with thorny stems, and looking up at "widow-makers" that could snap at any second.
Why Steep Slopes are Coral Tree Magnets
Coral Trees love moisture. In South East Queensland, our gullies and steep south-facing slopes hold onto water longer than the ridge tops. These areas are often the most difficult to access with standard farm tractors or even small excavators.
Because most landowners cannot safely get equipment into these spots, the Coral Trees are left to their own devices. They shade out native seedlings and create a monoculture. Often, they team up with other invaders. It is a common sight to see a Coral Tree acting as a trellis for Cat's Claw Creeper or providing the perfect shade canopy for Lantana to thrive underneath.
When you combine a 40-degree slope with thorny, brittle timber and a thick understory of Privet, you have a landscape that is functionally "locked." You can’t walk through it, you can’t graze it, and you certainly can’t enjoy it. This is where steep terrain clearing becomes a necessity rather than a luxury.
The Solution: Mechanical Mulching Over Manual Labour
Traditional methods of managing these trees usually involve "frilling" or "drill and fill" with herbicide. While this can kill the tree, it leaves a standing skeleton of brittle wood that will eventually fall on your fences or your head.
At ADS Forestry, we take a different approach. We use specialized forestry mulching equipment. Our machines are designed to operate on inclines that would make a standard tractor roll over. We don't just "cut" the tree. We pulverise the entire organism.
By turning the soft, wet wood of a Coral Tree into fine mulch, we remove the plant's ability to regrow from cuttings. The mulching process destroys the cellular structure of the wood, speeding up decomposition and returning nutrients to the soil. It also provides an immediate ground cover that helps prevent erosion on those steep 45-degree banks once the invasive root systems start to die off.
Reclaiming the "Unreachable" Parts of Your Property
The goal for most of our clients in places like Tamborine Mountain or the Beaudesert region isn't just to kill a weed. It is to regain use of their land. When we go into a gully choked with Coral Trees, we aren't just doing weed removal. We are opening up access.
Once the machines have cleared the bulk of the biomass, you can actually see the lay of the land. We often find hidden springs, beautiful rock formations, or forgotten fences once the Coral Tree curtain is pulled back.
This process is also essential for fire breaks. While Coral Trees themselves are quite "wet," the mess they create underneath, including dead branches and suppressed undergrowth, creates a significant fuel load. Clearing this out ensures that if a fire does come through the valley, it doesn't have a ladder of fuels to climb into the canopy.
Long-Term Management and Biodiversity
Once the heavy lifting of the paddock reclamation is done, the work doesn't stop. Coral Trees are persistent. We always tell our clients that the first pass with the mulcher is 90% of the battle, but that final 10% is up to Mother Nature and some light follow-up maintenance.
With the canopy opened up, native seeds that have been dormant in the soil for years finally get a shot at the sun. However, so do other opportunistic weeds like Wild Tobacco or Camphor Laurel.
We recommend a follow-up spray program once the mulch has settled and any regrowth or new seedlings appear. Because the ground is now clear of thickets and thorns, this task becomes a simple walk with a backpack sprayer rather than a fight through a jungle. Over time, as native grasses and shrubs establish, they will naturally out-compete the Coral Tree seedlings.
Choosing the Right Equipment for the Job
You might see a local guy with a brush cutter or a small skid-steer claiming they can handle your hillside. Be careful. Professional steep slope work requires machines with a low centre of gravity and high-torque mulching heads.
Our equipment is specifically chosen for South East Queensland conditions. Whether it's the red volcanic soils of the hinterland or the shale-heavy slopes of Ipswich and Brisbane's outer suburbs, we have the gear to sit safely on the side of a hill and work effectively.
Using the wrong equipment often leads to soil disturbance. If you "rip" a Coral Tree out by the roots on a steep slope using a backhoe, you are inviting the first big summer storm to wash your topsoil down into the creek. Mulching is superior because it leaves the root structure in place to hold the soil while the mulch protects the surface. It is the most surgical way to remove large-scale infestations without ruining the geography of your property.
Getting Started
If you are looking at a gully full of orange flowers and thorny branches, don't wait for a branch to fall on a fence or for the infestation to spread into your neighbours' paddocks. These trees don't stop; they only get heavier and more dangerous to remove as they age.
We serve the entire South East Queensland region, from the City of Gold Coast up to the Brisbane fringes and across the Scenic Rim. We know the local conditions, we know the councils, and we definitely know how to handle steep ground.
If you’re ready to see what your property looks like without the clutter of invasive species, reached out to us. We can walk the ground with you, assess the slope, and provide a plan that actually works.
Stop fighting a losing battle with a chainsaw and a pair of loppers. Let the heavy machinery do the hard work so you can get back to enjoying your land. get a free quote today and let's get that hillside cleared.