Why southern advice does not apply here
Most pruning calendars are written for temperate climates with a real dormant season. The Sunshine Coast does not have one. Growth slows in winter but it does not stop, and the humidity that drives fungal problems peaks in the wet season rather than in a cold spell.
So the rule here is not "prune when dormant". It is "prune when the tree has the best chance of sealing the wound quickly", which in practice means before the growing season rather than during the hardest part of it.
The main window: August to early September
Late winter into early spring is the general window for structural work - crown reduction, thinning, removing competing leaders.
At that point the coldest weather has passed, the tree is about to push into its main growth flush, and it has the full warm season ahead to compartmentalise the cuts. Wounds made now close visibly faster than the same wounds made in April.
This is the window for the reduction and thinning work that most mature trees need.
Straight after flowering
For anything grown for its flowers, timing is set by the flowering cycle rather than the general calendar.
Jacaranda, poinciana, frangipani, bottlebrush and most flowering ornamentals set the following season's buds on growth made during and after flowering. Prune them in winter and you cut off the display you were waiting for. Prune them within a few weeks of the last flowers dropping and you get both the tidy shape and the flowers.
Fruit trees
Mango and avocado are best pruned after harvest, which on the Sunshine Coast generally means late summer into autumn for mango. Citrus tolerate light work almost any time but respond best after fruiting, before the spring flush.
For all three, staged reduction over two or three seasons beats a single hard cut, which produces a flush of water shoots and no crop.
When not to prune
During a heat wave or a genuine dry spell, when the tree is already conserving water. On a tree stressed by construction, compaction or root damage - it needs its leaf area, not less of it. In the middle of a strong growth flush, when the tree is spending everything it has. And immediately after transplanting.
Also worth avoiding: heavy pruning in prolonged wet weather on species prone to fungal infection, since spores colonise fresh cuts faster on wet wood.
The work that ignores the calendar
Safety work happens whenever the defect is found. A hanging limb, a split union, a storm-damaged crown or a dead branch over a driveway does not wait for August.
On this coast that means the busiest pruning period is actually the weeks after a summer storm, which is the opposite of the ideal window and entirely unavoidable.
Getting it timed right
If the work is preventive - reducing a tree before storm season - book it for late winter and it will be both better for the tree and easier to schedule. Ring (07) 5408 6029, or read about what pruning achieves.
Frequently asked questions
When is the best time to prune trees on the Sunshine Coast?
Late winter into early spring - roughly August into early September - for structural work on most species. The tree is coming out of its slowest period and has the whole growing season ahead to seal wounds. Safety work is the exception and is done whenever a defect is found.
Can I prune in summer?
Light work, yes. Heavy reduction in the middle of a hot humid summer is harder on the tree: it is already under water stress, decay fungi are at their most active, and freshly exposed bark can scald. Deadwood and storm damage still come off immediately, whatever the month.
When should I prune flowering trees?
Straight after they finish flowering. Many flowering species set next season's buds on growth made during the current one, so a winter tidy-up removes the flowers you were waiting for. Jacaranda, poinciana and frangipani all follow this pattern.
Is there a time I should definitely not prune?
During drought or a heat wave, on a tree already stressed by construction or root damage, in the middle of a strong growth flush, and immediately after transplanting. Also avoid pruning wet foliage on anything prone to fungal infection - cuts made in wet weather are colonised faster.