The bluegum in your driveway isn't going to stop dropping branches on its own

Local tree felling guide

That’s not a welcome. It’s just the truth. If you’re in Randburg and you’ve got a big eucalyptus on the property, or a neighbour’s gum hanging over your side, you already know what happens every time the wind gets up. First it’s the small stuff: twigs, strips of papery bark, the occasional dead side branch. Then one afternoon a limb the size of a telegraph pole comes down on the carport and suddenly it’s not scenery anymore, it’s a claim form.

We’re Tree Hugger Collective, and tree felling in Randburg is a solid chunk of our work across Gauteng. That’s not a coincidence, Randburg has a specific, decades-old tree problem that the suburbs further south mostly don’t, and it comes back to what got planted here fifty and sixty years ago. Let’s get into it.

Why Randburg has a bluegum problem

When post-war Johannesburg was spreading north and west, people planted fast. The goal was shade and screening, as quickly as possible, on large residential plots that were still essentially bare Highveld. Eucalyptus species, bluegums, red gums, several varieties of the genus, ticked every box: extraordinarily fast growth, drought tolerance once established, good screening height. They were cheap, they were available, and they grew.

They’re still growing. And the ones planted in the 1950s, 60s and 70s are now enormous, not “big for a suburban garden” enormous but genuinely large timber, with trunks a metre across and canopies that overshadow multiple properties. The problem is that eucalyptus doesn’t age gracefully. The wood is brittle in a way that isn’t obvious from the ground. Internal decay is common in old specimens and almost invisible until you’re looking at the cross-section after it’s come down. The branch angles are often narrow, with included bark that weakens the union, and the whole tree is structured in a way that makes random limb drop more likely than many other species.

In suburbs like Ferndale, Fontainebleau, Olivedale and Cresta, these trees have been the background wallpaper for so long that people stop seeing them, until the morning after a storm, or the afternoon a branch clips the car. By the time we’re called, there’s often years of visible deterioration that was quietly telling the story: dead branches in the upper canopy, strips of loose bark, a slight lean that’s got gradually worse. Eucalyptus is also notorious for dropping branches in calm, dry weather, so-called “summer branch drop” where a heavy limb simply lets go under its own weight on a still afternoon. There’s no warning-shot wind. It just comes down.

Taking down a big eucalyptus safely: what the job actually looks like

If you’ve watched an underprepared crew try to fell a large bluegum in a suburban garden you’ll know that “let’s just drop it” is not the plan. A mature gum in Randburg is likely surrounded by boundary walls, neighbouring roofs, power lines, a driveway, possibly a pool, and a fence that nobody wants repairing. Taking it down in one go isn’t an option.

What we do is sectional dismantling. A qualified climber goes up into the canopy, either climbing directly or using an elevated work platform if access allows, and takes the tree down from the top, working in sections. Each section is rigged on a rope before the cut, so it doesn’t fall freely: a ground crew controls the descent and guides the piece into the designated landing zone. The climber works down through the canopy section by section until the main trunk is low enough to cut without risk. For very large specimens, or those with particularly bad access, a crane takes over from the ropes to lift whole sections clear of the structures below.

It’s methodical and it takes time. A large gum in a tight Randburg garden might be a day’s work or two, depending on size and access complexity. What it isn’t is a cowboy operation with one guy, a chainsaw and a prayer. The reason Randburg gums have damaged as many roofs and walls as they have over the years is usually not that they failed unpredictably, it’s that whoever tried to deal with them didn’t manage the risk properly. We plan the drop zone before any cut is made, the ropes and rigging are set up before the chainsaw starts, and nothing in the canopy comes loose until we decide it does.

The ridge and the gradient: tree work in Northcliff and surrounding suburbs

Northcliff is one of the highest points in greater Johannesburg, and the ridge that runs through it gives Randburg’s western edge its distinctive topography. The views are remarkable; the tree work is harder. Gardens on the ridge slopes are steep, access is sometimes single-lane or pedestrian-only, and the rock that sits close to the surface in places means that equipment can’t always get where you’d ideally put it.

Steep ground changes the risk calculation for tree removal in a specific way: a tree that would be a standard sectional job on flat ground becomes more complex when the timber is rolling downhill if anything goes wrong, when the climber is working on a slope that affects balance and rope angles, and when the “clear drop zone” you need is immediately occupied by a retaining wall or a lower terrace. We do a lot of this work through Northcliff, and the answer is usually tighter rigging, more ropes, and more ground crew, not less planning and more speed.

The access issue also means that equipment which is routine elsewhere sometimes isn’t possible: a large crane simply can’t reach every garden up a Northcliff ridge, and the solutions become more hands-and-rope intensive. This is worth factoring into expectations for pricing and timing. We’ll tell you at the quote what’s involved, not on the day.

Stumps and the regrowth problem: getting the roots out properly

If you’ve ever had a bluegum stump left in a garden, you know what comes next. Eucalyptus is among the most aggressive resprouters of any tree you’ll find in a Randburg garden. Cut the trunk and within weeks you’ve got a cluster of new shoots coming up from the base and from shallow roots spreading out in every direction. Leave them, and inside a few years you’ve traded one large tree for a thicket of stems that’s harder to manage than the original. Cut them down repeatedly, and you’re fighting an argument you’re not going to win through persistence alone.

The right answer is to take the stump out. Our grinder chews it down to between 150 and 300 millimetres below ground level, past the active growth tissue, and turns the whole thing into wood chip. For particularly determined resprouters, or where stumps are very large, we’ll sometimes apply a registered cut-stump treatment as well to interrupt the regrowth cycle. The grindings go into your beds or out with the green waste, whichever suits you.

This matters more than it might seem. An ungrown stump is also a trip hazard, an obstacle to anything you want to do with that ground, and, with eucalyptus in particular, a moisture-attracting structure that can make it easier for various root-feeding grubs and other fauna to get established near your house. Getting the stump out properly is the clean end to the job, and it changes what you can do with that part of the garden afterwards.

Keeping the trees you want to keep: pruning in Randburg

Not every tree in Randburg is a problem. The suburb’s old gardens, particularly through Ferndale, the streets behind Cresta, and the established Olivedale plots, have some genuinely beautiful specimens: mature oaks, well-grown planes, some excellent indigenous trees that have done exactly what they were supposed to do. The job with those is to keep them safe and healthy rather than waiting until they become the next problem.

Done well, pruning does a few things at once. It removes deadwood, branches that have died in the canopy and are waiting for vibration or a bit of wind to come loose. It reduces weight on overextended limbs, particularly the heavy, long horizontal branches that are most likely to tear in a storm. It lifts the canopy off roofs, gutters and walls where branches have crept over time. And it opens the crown so wind moves through rather than pushing against a solid wall of leaves. The tree that’s been properly pruned is significantly less likely to cause damage in a Highveld summer storm than one that hasn’t been touched in a decade.

What proper pruning doesn’t do is remove most of the canopy, leave stubs, or “top” the tree. Crown reduction done correctly takes out maybe fifteen to twenty percent of the canopy volume, enough to change the load and the wind profile without stressing the tree’s ability to photosynthesise and recover. We shape, we thin, we reduce, we deadwood. We don’t hack, and if you’ve been quoted a job that involves taking most of the crown off a healthy tree, it’s worth getting a second opinion before you agree to it.

What a Ferndale resident had to say