Pruning looks simple from the ground. A few cuts here, a few branches there, job done. In reality, it is one of those jobs that can either set a plant up beautifully or make a proper mess of it. I have seen both. Over the years, I have walked into Perth backyards where a decent tree had been hacked into a lopsided skeleton, and I have also seen tired, overgrown plants come good again with a careful, well-timed prune. That is the difference. It is not about cutting more. It is about cutting with a reason. Tree Amigos has worked across Perth since 1998, and pruning is one of the core areas where that hands-on judgement matters most.
In Perth, pruning is not just a gardening chore. It is tied to safety, property protection, tree health, council expectations in some situations, and how plants cope with our hot summers and winter storms. A branch hanging over a patio might look harmless in March, then come down after the first decent blow in July. A native shrub left untouched for years can become woody and sparse, then need far more correction than it would have with regular trimming. That is why good pruning is worth understanding.
Below, I will walk through the pruning tips that matter most, based on what actually works in real gardens and worksites, not just what sounds good on paper.
Start With the Purpose Before You Make a Single Cut
A lot of pruning mistakes happen because people start cutting before they know what they are trying to achieve. They stand in front of a tree or shrub, feel like it needs “a tidy-up”, and go for broke. That is how you end up chasing your tail.
Every Prune Needs A Reason
The first question I ask on site is simple: what is the problem we are solving? Is the tree unsafe? Is the canopy too dense? Is it crowding the fence line? Is it blocking a path, dropping dead wood, or growing poorly because it is carrying too much old material?
When you know the reason, the job becomes much clearer. A safety prune is different from a shape correction. A fruit tree prune is different from a hedge trim. A native shrub that needs light tip pruning is different from a mature tree that needs selective branch removal.
Here is a simple way to think about it:
|
Pruning goal |
What you are trying to achieve |
Typical result |
|
Safety |
Remove hazardous limbs or weak growth |
Lower risk to people and property |
|
Health |
Remove dead, damaged, or diseased growth |
Better plant condition and recovery |
|
Shape |
Improve balance and structure |
A cleaner, more natural form |
|
Clearance |
Pull growth back from roofs, fences, paths, or power lines |
Better access and less conflict |
|
Productivity |
Improve flowers or fruit |
Stronger blooms and better crop quality |
If you cannot explain why a branch should come off, leave it for a moment and assess again. That little pause saves a lot of grief.
Good Pruning Helps Plants More Than It Harms Them
People often worry that pruning will hurt the plant. Fair enough. It feels backwards to improve growth by cutting growth off. But plants are not as precious as many people think. Most respond very well to thoughtful pruning. In fact, some sulk badly when they are ignored for too long.
I have seen this with Perth natives more times than I could count. A bottlebrush or westringia gets planted, grows strongly for a few seasons, then no one touches it because they think native plants should be left alone. A few years later it is straggly, open through the middle, and leaning wherever it found the light. A light, regular prune early on would have kept it dense and tidy. Left too long, the fix becomes harder.
That is the heart of it. Pruning should support the plant’s health and shape, not fight against it. Tree Amigos’ own approach reflects that same balance: save the tree where possible, remove only when it is the sensible call.
Start With the Obvious: Dead, Damaged and Diseased Growth
Whenever I assess a plant, I begin with what I call the no-brainer cuts.
The “3 Ds” Should Always Come First
If a branch is dead, damaged, or diseased, it is usually the first thing to go. That is not guesswork. Dead wood serves no useful purpose. Damaged branches often fail later. Diseased sections can spread trouble through the rest of the plant.
A quick checklist helps:
- Dead branches with no live buds or healthy foliage
- Broken limbs after wind or storm damage
- Split or cracked unions
- Branches with visible dieback or signs of fungal decay
- Stems rubbing and stripping bark
These cuts do two things. First, they remove immediate problems. Second, they make the rest of the plant easier to read. Once the obvious clutter is gone, the structure starts to make more sense.
Then Look For Crossing, Crowded, And Awkward Growth
After the 3 Ds, I look for branches that are crossing over one another, growing back into the centre, or competing for the same space. In a crowded canopy, you often get branches rubbing every time the wind gets up. That bark damage opens the door to pests, decay, and weakness.
A realistic example would be a gum in a suburban backyard in Duncraig or Greenwood. The tree might not be “dangerous” in the dramatic sense, but if it has a tight canopy full of rubbing laterals over a driveway, it does not take much wind for one of those limbs to start failing. Sort it early and it is straightforward. Leave it until winter storms arrive and the job can become urgent very quickly.
Timing Matters More Than Most People Realise
One of the most common pruning mistakes is doing the right cut at the wrong time.
The General Rule For Many Trees And Shrubs
For most deciduous trees and shrubs, late winter to early spring is a sensible pruning window. The structure is easier to see without dense foliage, and the plant is about to move into active growth, which helps it recover cleanly.
That said, hazardous branches do not wait for the perfect month. If something is broken, hanging, or likely to fail, deal with it when you find it.
A simple timeline helps:
|
Time of year |
Best pruning use |
|
Late winter |
Structural pruning on many deciduous trees and shrubs |
|
Early spring |
Light correction before strong seasonal growth |
|
After flowering |
Spring-flowering shrubs and some natives |
|
Mid-summer |
Light trimming only, not heavy stress pruning |
|
Before winter storms |
Safety-focused pruning and removal of weak growth |
Flowering Plants Need Their Own Schedule
This trips plenty of people up. A shrub that flowers in spring often forms its flower buds earlier, so a winter prune can mean cutting off the display before it happens. That is why spring-flowering shrubs are usually better pruned after blooming.
By contrast, many summer-flowering plants bloom on fresh new growth, so late winter pruning can encourage a stronger flush.
This is one of those details that separates a useful prune from a frustrating one. I have had homeowners tell me their shrub “never flowers properly anymore”, then mention they cut it back hard every winter. There is your answer.
Perth Conditions Should Shape Your Timing Too
Local conditions matter. Perth summers are hard on stressed plants, especially on sandy soils where moisture disappears quickly. A heavy prune in extreme heat can be like kicking a plant while it is down. Better to avoid severe pruning in hot, dry spells unless there is a pressing safety reason.
Winter is another story. Once storms start rolling through, any weak unions, long overextended limbs, or dead wood become more of a liability. In our line of work, it is common to see jobs that would have been simple in May become emergency clean-ups in July. Better to sort it now than deal with it after it lands on the shed.
Use the Right Tools and Keep Them in Good Nick
This might sound basic, but the wrong tool causes a surprising amount of damage.
Match The Tool To The Branch
For small stems, bypass secateurs are the go-to. For thicker material, use loppers. Once a branch gets beyond that, a pruning saw is usually the right answer. Hedge shears are fine for formal hedges, but they are not a cure-all for shrubs and certainly not for trees.
Here is the basic tool guide:
- Bypass secateurs for small live stems
- Loppers for medium branches
- Pruning saw for thicker limbs
- Hedge shears for formal shaping only
Trying to cut a thick branch with hand pruners usually ends in two problems: a ragged wound on the plant and a damaged tool in your hand.
Sharp And Clean Beats Fancy Every Day Of The Week
You do not need a shed full of expensive gear for basic pruning, but you do need sharp and clean blades. A blunt tool tears rather than cuts. That leaves bruised tissue and poor wounds.
Tool hygiene matters too, especially when dealing with diseased material. At a minimum:
- Clean sap and debris off after use
- Disinfect blades after diseased cuts
- Oil moving parts
- Store tools somewhere dry
It is not glamorous, but it is the sort of practical habit that keeps jobs neat and stops problems spreading from one plant to the next.
Make Better Cuts and the Plant Will Respond Better
A lot of pruning comes down to cut quality. The branch you choose matters, but so does how you remove it.
Cut Above A Healthy Outward-Facing Bud
When shortening stems, make the cut just above a healthy bud, not halfway up the internode and not so close you damage the bud itself. I always favour an outward-facing bud where possible. That encourages new growth away from the centre and helps keep the plant open rather than tangled.
It sounds like a small detail, but it changes the whole shape of future growth.
Respect The Branch Collar
On larger branches, do not make a flush cut right against the trunk. You want to cut just outside the branch collar, which is the slightly swollen area where the branch joins the parent stem. That collar helps the tree wall off the wound.
Leave too much stub and it dies back. Cut into the collar and you create a bigger wound than necessary. There is an art to finding the sweet spot, but once you know what to look for, it becomes second nature.
Use The Three-Cut Method For Heavier Limbs
Heavy branches are where DIY jobs often go pear-shaped. Someone starts cutting from the top, the branch tears before it is fully free, and a strip of bark rips down the trunk. That turns a routine cut into a much uglier wound.
For larger limbs, use the three-cut method:
- First undercut the branch a short distance from the trunk
- Then make the main cut from above slightly further out
- Finally remove the stub neatly just outside the branch collar
I have seen older backyard trees in Perth where one bad cut twenty years ago still left a visible defect. That is the thing about pruning. The plant remembers.
Know the Difference Between Proper Pruning and Butchery
This is the part where many trees come unstuck.
Thinning Cuts Usually Give The Cleanest Result
Thinning means removing a whole branch back to its point of origin or to a suitable lateral. It reduces bulk without wrecking the natural shape. It also lets in more air and light through the canopy.
For mature trees, thinning is often the best way to improve structure and reduce risk while still keeping the tree looking like itself. That matters. A properly pruned tree should not look butchered. It should just look better balanced and healthier.
Topping Is Not Proper Pruning
I’ll say this plainly because it needs saying: topping is one of the worst things you can do to a tree. Cutting main canopy limbs back to random stubs does not solve a long-term problem. It creates one.
The result is usually a rush of weak, upright shoots, poor structure, stress on the tree, and more maintenance later. It can also make the tree less safe over time because the regrowth often has poor attachment.
We have spent years in Perth undoing the aftermath of this sort of work. What looked like a cheap quick fix at the start often turns into repeated call-backs, ugly regrowth, and a tree that is harder to manage than before.
“A good prune works with the tree’s structure. A bad one fights it, and the tree usually loses.”
Pruning Tips for Common Plants in Perth Gardens
Different plants respond differently, so blanket advice only gets you so far.
Fruit Trees Need Light, Air, And Manageable Height
With fruit trees, the goal is usually a strong framework and enough light through the canopy to support good fruit development. An open centre often helps. So does keeping the height within reach rather than letting the tree bolt skyward and become a harvesting headache.
A simple fruit tree pruning checklist:
- Remove dead and damaged wood
- Open the centre where needed
- Reduce crossing and crowded growth
- Keep height sensible
- Retain a balanced scaffold structure
Hedges Should Be Wider At The Base Than The Top
This is one of the oldest hedge rules around, and it still catches people out. If the top is broader than the bottom, the lower growth gets shaded out and the base goes thin and twiggy.
On formal hedges, keep the sides slightly tapered. It is a simple detail, but it makes all the difference over time.
Australian Natives Often Benefit From Regular Light Pruning
There is a common idea that native plants should be left entirely alone because they survive in the bush. In a domestic garden, that is not always the best approach. Many respond beautifully to light pruning, especially after flowering.
Bottlebrush, grevillea, and westringia are good examples. Tip prune them early and regularly, and they tend to stay denser and better shaped. Ignore them for years and they often become woody, leggy, and awkward.
I have seen this on plenty of Perth properties where a native planting was meant to be soft and full but ended up sparse because no one touched it. A little attention early saves a much heavier correction later.

Common Pruning Mistakes That Cost More Than They Save
Sometimes the most useful advice is what not to do.
Do Not Remove Too Much At Once
As a rule of thumb, avoid removing more than about one-third of the live canopy in one hit. Go beyond that and you can stress the plant badly. It loses too much foliage, has less energy production, and can respond with poor regrowth or decline.
If a tree or shrub has seriously outgrown the space, the answer may be staged pruning over time. In some cases, the honest answer is that the plant was wrong for the location to begin with.
Other Mistakes Worth Avoiding
Here are a few I see often:
- Pruning at the wrong time of year
- Leaving long dead stubs
- Cutting flush to the trunk
- Using hedge shears on plants that need selective cuts
- Working with dull or dirty tools
- Topping trees
- Doing heavy pruning during extreme heat
A hypothetical example is a homeowner who trims a mature shrub flat across the top every few months because it is quick. At first glance, it looks tidy. A year or two later, the outer shell is dense, the interior is bare, and the whole plant is thicker, heavier, and harder to manage. Cheap work often costs twice.
What to Do After Pruning
A plant does not need pampering after every light trim, but after heavier pruning, sensible aftercare helps.
Water, Mulch, And Monitor Recovery
In Perth’s dry conditions, water can make the difference between steady recovery and stress. Deep watering, sensible mulch, and keeping an eye on fresh growth all help.
For recently pruned plants:
- Water deeply if conditions are dry
- Refresh mulch without piling it against stems or trunks
- Watch for signs of stress or poor regrowth
- Avoid piling on extra stress during heatwaves
Skip The Pruning Paint In Most Cases
A lot of people still think pruning cuts need sealing. In most cases, they do not. A clean, correctly placed cut matters far more than a cosmetic coating. Trees and shrubs have their own processes for sealing wounds. Slapping paint on them is usually unnecessary.
Know When It Is Time to Call an Arborist
There is a line between garden pruning and proper arboricultural work. People get into trouble when they ignore that line.
Some Pruning Jobs Are Not Worth The Risk
Call a qualified arborist if:
- The work is near power lines
- Large limbs hang over a roof, driveway, or neighbour’s property
- The tree needs climbing or rigging
- There is visible decay, cracking, or major storm damage
- The job needs heavy reduction or structural assessment
Tree Amigos guarantees a qualified arborist on site and provides written quotes before work begins, which matters because tree work is not just labour. It is judgement, safety planning, and knowing what each cut is likely to do over time.
Good Advice Is Part Of The Value
One thing I have learnt after decades in this trade is that people do not just want branches removed. They want clarity. They want to know what needs attention now, what can wait, and whether the tree can be improved rather than removed. That straight-talking, practical advice is part of the job. It is also part of the Tree Amigos voice: experienced, calm, local, and focused on doing the work properly.
Pruning is not about being ruthless. It is about being deliberate. A good prune improves health, safety, structure, and appearance without fighting the plant’s natural form. Start with a reason. Remove the dead, damaged, and diseased growth first. Use the right tools. Make clean cuts. Respect timing. And for heaven’s sake, do not top trees and hope for the best.
If there is one takeaway I would leave you with, it is this: prune with a plan, not panic. A few thoughtful cuts now are worth far more than a frantic clean-up later. In Perth gardens, where heat, wind, tight access, and fast-growing plants all come into play, that bit of foresight goes a long way. Get it right, and your trees and shrubs will look better, grow better, and give you far fewer headaches down the track.


