The simple answer on how to prune olive trees is to cut them in late winter or early spring, after the worst frost risk, by removing dead wood, crossing branches and crowded growth to open the canopy. The biggest mistake is shearing the tree like a hedge, which leaves dense foliage outside and a bare, unproductive centre.
This guide covers how to prune an olive tree in Sydney, olive tree pruning in Australia more broadly, the tools you need and when to call a professional.
Key points
- Late winter to early spring is the best time to prune olive trees in Sydney, before the new season’s growth starts.
- You need sharp, clean secateurs, loppers and a pruning saw, and a stable ladder only if you can work safely below head height.
- Check your council’s tree rules before cutting a large or protected tree, and leave work near power lines to a qualified arborist.
- Tree pruning by a Sydney professional typically costs about $230 to $1,375 per tree, with a typical price around $520 (October 2026).
When to prune olive trees in Australia
Olives are tough, but timing still affects flowering and fruit. In most of Australia, aim for the cool part of the year when growth is slow.
| Season | What to do | Why |
|---|---|---|
| Spring (Sep to Nov) | Main structural prune once frosts have passed. | Cuts heal quickly as growth picks up, and you can see which branches are dead. |
| Summer (Dec to Feb) | Light tidy only, such as removing water shoots. | Heavy cuts expose bark to sunburn and stress the tree in humid heat. |
| Autumn (Mar to May) | Prune after harvest on fruiting trees, if you grow olives for the table. | You avoid cutting off next season’s fruiting wood by mistake. |
| Winter (Jun to Aug) | Late winter prune in mild suburbs, but delay in frost-prone western Sydney and the Blue Mountains. | Fresh cuts can suffer frost damage on very cold nights. |
In the Hills District we often see olive trees with a thick outer shell of leaves and almost no growth inside, which is the usual result of years of trimming only the tips.
What you need to prune olive trees
| Item | What it is for | Tip |
|---|---|---|
| Bypass secateurs | Cuts small branches cleanly | Choose bypass over anvil types, because they cut without crushing the bark. |
| Loppers | Cuts thicker branches that secateurs cannot handle | Long handles give you leverage without strain on your wrists. |
| Pruning saw | Removes larger limbs | Use a curved blade and cut in short, controlled strokes. |
| Gloves and eye protection | Protect hands and eyes from scratches and flying wood | Wear them every time, even for small jobs. |
| Disinfectant wipes or spray | Cleans blades between cuts and trees | Follow the product label, and avoid spreading disease between plants. |
| Tarp or green waste bags | Collects prunings | Bag or bin the clippings rather than leaving diseased wood on the ground. |
How to prune olive trees: step by step
- Stand back and study the tree from a few metres away, looking for dead, damaged or crossing branches and an overly dense canopy (indicative — judge by eye).
- Check your council’s tree rules first, because some councils require approval for large or protected trees, even for pruning.
- Wash your hands and wipe your blades with disinfectant, then put on gloves and eye protection before the first cut.
- Remove dead, diseased and broken wood first, cutting back to healthy tissue just outside the branch collar.
- Cut out branches that cross or rub, keeping the stronger, better-placed limb to build an open vase shape.
- Thin the crown so light and air reach the centre, aiming for a canopy you could throw a small bird through (indicative — judge by eye).
- Remove suckers from the base and water shoots from the trunk, which draw energy away from the main framework.
- Shorten overlong branches back to an outward-facing bud or side branch, and avoid stubs that die back.
- Stop when you have removed no more than about a third of the canopy in one season (indicative — spread heavy work across several years).
- Rake up all prunings, bag them, and water the tree in line with Sydney Water’s Water Wise Guidelines, before 10 am or after 4 pm.
How to prune an olive tree by age and type
Young, mature and potted olives need different treatment, so match your cuts to the tree in front of you.
Prune young olive trees
- Pick a few well-spaced main branches and remove the rest to build a strong structure early (indicative — judge by eye).
- Keep cuts light for the first few years so the tree puts energy into roots.
- Pinch back vigorous tips to encourage side shoots that will carry fruit later.
- Stake only if the trunk leans, and remove the stake once it can stand alone.
- Water deeply in dry spells, following Sydney Water’s hose and timing rules.
Prune mature and overgrown olive trees
- Spread heavy renovation over two or three seasons so the tree does not go into shock.
- Open the centre first, then reduce height, because olives resprout strongly from old wood.
- Remove dead limbs high in the canopy only if you can reach them safely from the ground.
- Leave limbs above head height, near buildings or close to power lines to a qualified arborist.
- Check with council before taking out large limbs on big or protected trees.
Prune potted and hedge olives
- Pot-grown olives need regular light pruning to stay in proportion with the container.
- Remove crowded inner shoots so air can circulate and reduce leaf problems in humid weather.
- Refresh the top few centimetres of potting mix after pruning (indicative — check the product label).
- Hedge or screen olives can be trimmed with shears, but thin the inside every year as well.
- Keep powered tools to the NSW noise hours, which allow use after 7 am on weekdays and Saturdays and after 8 am on Sundays and public holidays.
Olive tree pruning in Australia: common mistakes
- Cutting off all the tips and leaving a thick shell of foliage, which blocks light from the centre.
- Pruning hard in a hot summer, which exposes bark to sunburn and stresses the tree.
- Leaving long stubs that die back and invite disease instead of cutting cleanly at the branch collar.
- Removing more than a third of the canopy at once, which forces weak, leggy regrowth.
- Using blunt or dirty tools, which tear bark and spread disease between plants.
- Pruning olives near power lines or from a ladder when a professional should do it.
When to call an arborist or gardener for olive trees
- The tree is tall enough that you need a ladder or climbing, so book a qualified arborist rather than risking a fall.
- Branches are close to power lines, which is work for licensed professionals only.
- Your council lists the tree as protected or requires approval for pruning at its size.
- The olive is badly overgrown and needs staged renovation across several seasons.
- You see dieback, scale or other pests, in which case book a licensed pest controller instead of guessing.
- You want the prunings, branches and green waste taken away after the job.
Olive tree pruning cost in Sydney
| Job | Low | Typical | High |
|---|---|---|---|
| Tree pruning or trimming (per tree) | $230 | $520 | $1,375 |
| Sydney gardener (per hour) | $52 | $75 | $115 |
| Small tree removal (under 5 m) | $290 | $575 | $920 |
All prices include GST and reflect October 2026 Sydney rates.
FAQ: how to prune olive trees questions
When to prune olive trees?
Prune olive trees in late winter to early spring, after frost risk has eased and before new growth starts. On fruiting trees, you can also prune after harvest in autumn. Avoid heavy cutting in hot summer, because exposed bark can sunburn.
How to prune an olive tree?
Remove dead and crossing branches first, then thin the crown to open the centre. Shorten overlong branches back to a side shoot, and take out suckers. Never remove more than about a third of the canopy in one season (indicative — spread heavy work across years).
How to prune olive trees for fruit?
Keep an open canopy so light reaches fruiting wood, and avoid cutting off all the young shoots from last season. Prune lightly each year rather than hard every few years. Olives fruit on the previous year’s growth, so take care with timing.
When to prune olive trees in Australia?
In Australia the cooler months suit olive pruning, but local climate matters. In Sydney, late winter to early spring works well, while frost-prone areas such as the Blue Mountains should wait until spring. Always check your council’s tree rules for large or protected trees.
Getting olive tree pruning help in Sydney
If your olive is too big to prune from the ground, we can thin it safely and clear the green waste. See our tree pruning service in Sydney, or plan the rest of your edible garden with the what vegetables to plant now guide.
Citrus trees have their own timing, so read when to prune lemon trees and the dwarf lime tree guide for a similar approach.
If you are planning a new edible bed, start with how to start a vegetable garden, growing tomatoes in Australia, how to grow basil and how to propagate rosemary.
