How to Prepare Your Canberra Garden for Storm Season

Canberra’s storm season brings intense winds, heavy rain, and the occasional hailstorm that can turn a healthy-looking tree into a serious hazard overnight. Every year, storm-related tree damage across the ACT causes hundreds of thousands of dollars in property damage — crushed fences, smashed roofs, blocked driveways, and downed power lines. Much of this damage is preventable with some straightforward preparation.

Here are five steps every Canberra homeowner should take before severe weather arrives. Regular hedge trimming and garden maintenance also plays a key role in storm preparedness.

1. Inspect Your Trees for Weak Points

Walk your property and look critically at every tree, especially large ones within falling distance of your house, garage, fence, or vehicles. Look for:

• Dead branches hanging in the canopy (grey, barkless, no leaves)
• Cracks in major limbs or the trunk
• Fungal growth (mushrooms, bracket fungi) at the base or on the trunk
• Trees that appear to be leaning more than you remember
• Branches that have grown to overhang your roof, carport, or power lines
• V-shaped forks in the trunk (these are structurally weak and prone to splitting)

If you spot anything concerning, book a professional inspection sooner rather than later — arborists get extremely busy once storm warnings are issued, and wait times blow out significantly.

2. Have Dead and Overhanging Branches Removed

Dead wood is the number one cause of storm-related tree damage in Canberra suburbs. A heavy limb that falls from even a moderate height can smash through a Colorbond roof, crush a fence panel, total a parked car, or block your driveway at the worst possible time.

Professional tree trimming and pruning removes these hazards safely and on your schedule — rather than letting nature do it on its own terms during a midnight thunderstorm. It’s also significantly cheaper to remove a dead branch proactively than to repair the damage it causes when it falls.

3. Reduce the Sail Effect on Large Canopies

Trees with dense, heavy canopies catch wind like a sail. This puts enormous lateral stress on the trunk and root system during severe gusts — exactly the kind of stress that causes whole-tree failure. Canberra’s eucalypts are particularly susceptible because many species grow long, heavy lateral branches that act as lever arms in high wind.

Canopy thinning — selectively removing interior branches to allow wind to pass through rather than pushing against it — is one of the most effective storm-preparation techniques. A well-thinned canopy reduces wind load by 30–50% while maintaining the tree’s shape, shade, and privacy benefits. This is skilled work that should only be done by a qualified arborist — incorrect thinning (often called “lion-tailing”) actually makes trees more dangerous.

4. Check Trees Near Power Lines and Structures

Trees growing close to power lines, your home, or your neighbour’s fence require extra attention before storm season. A branch that appears “close enough” in calm weather can easily make contact in strong winds, causing power outages, electrical fires, or structural damage.

In the ACT, vegetation clearance near power lines is regulated, and residents have a responsibility to ensure trees on their property don’t encroach on the electrical network. If any of your trees are within reach of power lines, contact a qualified arborist in Canberra to assess and manage the situation safely — never attempt to prune near power lines yourself.

5. Secure or Remove Unstable Trees

If a tree on your property is already compromised — leaning, hollow, showing significant root disturbance, or has a history of dropping limbs — storm season is not the time to “wait and see.” A compromised tree in a severe wind event doesn’t just damage your property; it can damage your neighbour’s, block roads, and create serious safety hazards.

Professional tree removal and stump grinding before a storm is far safer, more controlled, cheaper, and less disruptive than emergency removal after one. You choose the timing, the access is clear, and the work can be done methodically rather than urgently.

What to Do After a Storm Hits

Even with thorough preparation, Canberra’s storms can still cause tree damage. Here’s what to do in the immediate aftermath:

• Stay away from fallen trees and branches — Downed trees can carry hidden tension in bent trunks and branches. They can snap unpredictably when disturbed. Leave removal to professionals.
• Check for power line contact — If a tree or branch has fallen on or near power lines, keep everyone at least 8 metres away and call your electricity provider immediately. Never touch a tree that’s in contact with wires.
• Document the damage — Take photos before any cleanup begins. Your home insurance may cover storm tree damage, and documentation makes the claims process much smoother.
• Call for emergency tree removal — If a tree is blocking your driveway, leaning on your roof, or poses an immediate danger, call our 24/7 team on 0423 190 077. We respond to storm call-outs across Canberra day and night.
• Assess remaining trees — After a storm, check surrounding trees for new cracks, splits, or lean. Damage from one storm can weaken a tree enough to fail in the next one.

Frequently Asked Questions

Prepare Now — Don’t Wait for the Storm

The best time to prepare your garden is weeks before storm season hits — not when the Bureau of Meteorology issues a severe weather warning. Contact Arborista Trees today or call 0423 190 077 for a free property assessment. We’ll identify every risk on your property and give you a clear, prioritised plan to protect your home, family, and vehicles.

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