When to trim hedges in Melbourne: a season-by-season maintenance schedule

Ask ten neighbours when to trim hedges and you will get ten answers, most of them "when it looks messy". That is the reason so many Melbourne hedges are cut at the wrong time: in a heatwave because the top went shaggy, in autumn because the leaves fell, in winter because the weekend was free. The hedge does not care about the weekend. It cares about its own growth cycle and the weather on the day, and this guide lays both out month by month so the cut lands when the plant can use it.

Api Mariner is a qualified arborist who has trimmed hedges across Melbourne's west, the inner suburbs and Geelong for more than 16 years. The calendar below is the one his regular customers run on.

When to trim hedges: the Melbourne hedge calendar

The Bureau of Meteorology's long-run averages for Melbourne Airport set the rhythm. Mean maximums run at 26.7 degrees in January and February and fall to 13.2 degrees in July, with a mean minimum of 5.5 degrees in the coldest month; rainfall peaks in spring, 62.4 mm in November and 55.7 mm in October, and bottoms out at 35.0 mm in July ^[1]. Hedges flush hardest through that wet spring and early summer, slow in the dry heat, and stop in winter. Every entry in the calendar follows from that.

The two rules that sit behind every line: hard cuts happen when the plant is about to grow, so it can cover them; light trims happen while it is growing, so each cut makes it denser. Gardening Australia's Angus Stewart puts the lilly pilly rule simply: prune in late winter, before new growth comes on in spring, and in cooler climates wait until all danger of frost has passed ^[2].

When to trim each hedge

The calendar above is the average. The species decides where within it a particular hedge falls.

Lilly pilly

Hard pruned in late winter; it takes a cut as hard as you like, even down to ground level, and a good hard prune also clears scale insect and sooty mould without chemicals ^[2]. Through the growing season it is trimmed little and often, which Gardening Australia's Jane Edmanson recommends so the plants bush up, with the tops cut level early rather than waiting for full height ^[5]. Three to four trims a year is typical on good soil.

Photinia and viburnum

Both flower in spring and both are cut straight afterwards. Sophie Thomson describes laurustinus (Viburnum tinus) flowering for three to four months over late winter and spring, and advises deadheading immediately after flowering every year from planting, which keeps the hedge compact all the way to the ground; photinia, she adds, can be pruned after flowering as well ^[3]. Two or three trims a year keep either one sharp, and the red flush on a freshly trimmed photinia is the reward.

Pittosporum, murraya and box

The fine-leafed formal hedges want frequency, not force. A light trim three or four times through spring and summer holds a crisp face; a single heavy cut after years of neglect is how these hedges end up thin. Hard cuts, where they are needed, belong in late winter to early spring.

Conifers

Leighton Green cypress and its relatives are trimmed within the green only, in any mild, still month, one or two times a year. They do not reshoot from old brown wood, so there is no season in which a cut past the green is safe. A conifer hedge that has grown too tall is reduced in stages over more than one year.

Native hedges

Grevillea, westringia, correa and small callistemons are tip pruned in autumn, up to the end of April, taking the top couple of centimetres from each branch so that at least two new shoots grow behind every cut ^[4]. Harder tip pruning, removing the top 30 to 40 cm of a top-heavy plant, takes weight off and prevents breakage, and a straggly native can be hard pruned by half or to the ground to rejuvenate it ^[4]. The one rule: if there is a flower bud, wait ^[4].

Had Api come and trim back some out of control trees on our new property to a maintainable level, looks fantastic and he and his team were prompt, tidy and great to deal with. Highly recommend! Definitely have him back soon

How often a hedge needs cutting, and why little and often wins

The cadence column above is the heart of a seasonal hedge schedule. Two to four visits a year sounds like a lot until you see what each one involves: soft tips coming off, a quick rake, and a hedge that is always close to its shape. The alternative is a rescue cut every few years that goes into woody growth, produces bulk waste and, on conifers, cannot be done in one go at all.

The horticulture behind it is Gardening Australia's little-and-often rule ^[5]: every light cut into new growth makes the hedge branch just behind the cut, so the face gets denser with each trim. Frequency is the tool. The trimmer is just how you apply it.

What to do after each cut

A trim is not finished when the trimmer stops. Four small jobs decide how well the hedge recovers.

That last item is a maintenance job in its own right. For a hedge on your property, you are responsible for keeping it clear of the service line that runs to your house, and Energy Safe Victoria says to clear growth before it comes within one metre of the insulated line in any direction ^[6]. The autumn walk-round and the winter check are when that gets caught.

The signs a hedge needs a professional

Most of the calendar is a good weekend job on a hedge you can reach from the ground. Five signs move it out of that category.

Height is the one people push through, and it is the one that hurts. Safe Work Australia's guidance for trimming and pruning amenity trees is that tree trimming or removal work should not be done from ladders ^[8]; a two-handed trimmer, a springy hedge and a ladder is not a stable combination at any age. Api works tall hedges from platforms with an exclusion zone underneath ^[8], and that is a large part of why a professional cut looks different a year later: the top is level because it was cut from a stable place with a string line, and the face is battered because both sides were cut from the bottom up.

Knowing how hard to cut a hedge is the other professional judgement. Lilly pilly and viburnum come back from a hard cut in their season; conifers never do; the fine-leafed hedges want stages. Api will tell you on a free visit which category yours is in, and quote the staged reduction honestly if that is what it needs.

Big Thanks to Api and his team, for the pruning and cutting of Trees/Bushes on my property. As well as giving me a hedge I never knew existed or could have envisioned. Cheers, and these guys have my endorsement.

Removing a hedge instead of maintaining it

Sometimes the right entry in the calendar is "take it out". A conifer screen with brown holes on every face, a hedge planted under a service line, a privacy hedge that has become a wall of dead wood: these are replaced, not rescued. Two things to check first. If the hedge is actually a row of tall trees, the state canopy-tree rule can apply: since September 2025 a tree in a Victorian residential zone more than 5 metres tall, with a trunk over 0.5 metres around at 1.4 metres and a canopy of at least 4 metres, needs a planning permit for removal near the street or rear boundary ^[10]. And any tradesperson you use should show a certificate of currency for public liability insurance and quote in writing, per Consumer Affairs Victoria's checklist for home jobs ^[9]. Api checks the council position on your title as part of the quote and tells you before anything is cut.

Getting the calendar right in your own garden

Garden hedge trimming is one of the few jobs where doing less, more often, is the expert approach. Write the firm cut for each hedge into the month it belongs, trim lightly through spring and summer on mild days, rake the base every time, and look up for the line in autumn. Do that, and a hedge that used to need rescuing every third year starts looking after itself.

For the hedges that are too tall, too woody, too close to a line or too far gone, our hedge trimming service quotes on site for free and puts the plan, the timing and the price in writing. Api answers the phone 7 days from 6am.