Tree Care for the Southern Highlands' Cool-Climate Gardens

A garden region with a real winter

Drive from Corbett Gardens in Bowral up over Mount Gibraltar and down into Mittagong, and you pass through a hundred and fifty years of deliberate planting: avenues of oak and elm, liquidambars that turn the streets red in April, conifer windbreaks on the rural blocks, and old claret ash standing over Federation gardens. Push south through Moss Vale, Sutton Forest and Exeter and the gardens get bigger. Turn east and the country changes completely — the basalt paddocks around Robertson, then the escarpment edge at Fitzroy Falls and the sandstone gorges of Morton National Park behind Bundanoon.

Southern Highlands Tree Services connects property owners across the Wingecarribee with local tree crews — for the considered, seasonal care that established gardens need, and for the harder jobs when a tree can no longer be kept.

What the Highlands actually does to trees

This is not Sydney weather with a jumper on. Bowral sits around 680 metres and has an oceanic climate with cold winters; frost is common through winter and can turn up outside it, and while snow is rare the Highlands has recorded falls of more than 15 centimetres (Bowral, Wikipedia). That climate is exactly why the region grows deciduous trees so well — and it also sets the rules for working on them.

• Cold-air drainage matters more than the map suggests. Frost pools in the low ground and along creek lines, so two gardens a few hundred metres apart can be a fortnight out of step on bud burst. Prune a frost hollow on the same schedule as a north-facing ridge and you will get different results.
• Dormancy is a real, usable window. Deciduous trees here genuinely shut down. That gives a clean winter period for structural work that simply does not exist further north.
• Wind arrives from the east as well as the west. Air lifting over the Illawarra escarpment behind Robertson and Fitzroy Falls hits exposed plateau country with nothing to slow it down. The trees that fail are usually the ones left standing alone after a paddock was cleared around them.
• Soils are not one thing. Rich red-brown basalt-derived soil around Robertson sits under 1000–1600 mm of rain a year (DCCEEW conservation advice); Mittagong sandstone, Mount Gibraltar's trachyte and the shale country elsewhere all behave differently again under a root plate and under a machine.
• Natives and exotics share the same fences. Ribbon gum, mountain grey gum, black sallee and brown barrel — the last dominant on Mount Gibraltar (Australian Plants Society) — grow alongside imported oaks, elms and beech, and the two groups want very different handling.

What we arrange, in the order we would usually recommend it

• Tree Pruning & Deciduous Care — the work that prevents most of the rest, timed to the species and the season.
• Heritage & Mature Tree Management — long-horizon care for the old specimens that define a Highlands property.
• Tree Removal — when a tree genuinely cannot be kept, done safely and cleanly.
• Hedge & Topiary Trimming — the clipped structure that holds a cool-climate garden together.
• Stump Grinding — below-grade grinding so beds and lawns can be replanted.
• Windbreak & Shelterbelt Maintenance — thinning and shaping conifer belts on acreage and rural blocks.
• Storm & Wind Damage Response — callouts for wind-thrown and broken trees.
• Land Clearing — selective clearing that keeps the specimens worth keeping.
• Mulching & Green Waste Removal — chipping on site or hauling it all away.

A year of Highlands tree care

Timing is most of the craft up here. Roughly how the calendar runs:

Winter (June–August). The dormant window. Structural pruning of oaks, elms, liquidambars and claret ash, when the framework is visible and there are no leaves in the way. Formative work on young trees. Planting.

Early spring (September–October). Watch for elm leaf beetle as elms come into leaf — the beetle reached the Highlands after being found in nearby Goulburn in 2013, and Council has run a stem-injection program on street elms around the Bowral CBD (Southern Highland News). Hedges get their first cut as growth starts.

Summer (December–February). Light hedge and topiary maintenance, deadwood inspections while the canopy is full and thin spots are obvious, and reduction work on species that respond better to summer cuts than winter ones.

Autumn (March–May). The best time to look honestly at a mature tree: colour change exposes dieback, and a limb that colours early or not at all is telling you something. Also the season to book anything you want done before winter fills up.

Any time. Hanging limbs, split forks, storm damage and anything over a roof or a driveway. Those do not wait for a season.

The Wingecarribee approval question, answered carefully

Do not assume the tree in your own garden is yours to remove. Wingecarribee Shire Council administers private tree and vegetation work through its Development Control Plan together with the State Environmental Planning Policy (Vegetation in Non-Rural Areas) 2017. Two pathways exist for non-rural land: a Vegetation Clearing Permit (Council's guidance describes it as limited to ten trees) and a Tree Removal – Request for Exemption. Applications on rural-zoned land are generally referred to Local Land Services rather than Council (Wingecarribee Shire Council).

Council's guidance also indicates that minor tree works — general maintenance pruning carried out with regard to AS 4373 — may not require approval, while removal, heavier pruning and anything touching a heritage conservation area, a heritage-listed property, biodiversity-mapped land or an endangered ecological community will need to be checked. Fees for a tree management approval are listed at $125 for the first tree and $62 for each additional tree for 2025–26 (ABLIS).

Street trees and nature-strip trees are Council's, not yours. Report a problem tree in the road reserve to Council rather than touching it.

Rules, mapping and fees change, and the answer depends on your specific address and zoning. Use Council's Tree and Vegetation Clearing Map and confirm with Wingecarribee Shire Council on 02 4868 0888 (Civic Centre, 68 Elizabeth Street, Moss Vale) before booking anything. We would rather you spent a phone call than a penalty.

What to ask before you book anyone

Ask for the insurance, in writing. Any crew working over a slate roof, a glasshouse, a boundary hedge or an Endeavour Energy service line should be able to produce a current certificate of currency for public liability. Check the dates and check the insured name matches the business quoting. Verify it — do not accept "yes, we're insured" over the phone.

Ask what standard they prune to. AS 4373 (Pruning of Amenity Trees) is the benchmark. If the answer is a blank, that is your answer.

Ask what they would do instead of removing it. A crew that reaches for removal first on a hundred-year-old oak is solving their problem, not yours.

Ask where the debris goes. Chipped on site as mulch, or carted out. Both are fine; being left with a heap of liquidambar on the front lawn is not.

Where we work

Right across the Wingecarribee: Bowral, Burradoo, Mittagong, Welby, Moss Vale, Berrima, New Berrima, Sutton Forest, Exeter, Bundanoon, Penrose, Colo Vale, Hill Top, Kangaloon, Robertson and Fitzroy Falls. Local detail for each on the Towns We Serve page.

Talk it through before anything is cut

Most Highlands tree jobs are better for a conversation first. Call (02) 4214 4160 for a free, no-obligation quote anywhere in the Southern Highlands — including a straight opinion on whether the work needs doing at all, and whether it should be done this season or the next one.