Brushtail and ringtail possums are protected wildlife in Australia — you can't legally kill, trap, or relocate them. So the question isn't how to get rid of possums, it's how to live alongside them while saving your roses, citrus and roof gutters. Here's what actually works without harming them.
At a glance: our top 5 picks
Our 5 picks reviewed
Possum Off Spray (Quassia + Garlic)
What we love
- Quassia + garlic — bitter taste deterrent
- Plant-safe and pet-safe
- Made in Australia
- Effective on roses and citrus
Watch out for
- Reapply weekly
- Smell fades fast in rain
Quassia chips brewed into a bitter spray have been the gold-standard possum deterrent in Australian gardens for decades. Possum Off combines quassia with garlic for double bitterness. Plant-safe, pet-safe, won't harm native birds. Reapply weekly during active growth — and after rain. We use this on rose buds and new citrus growth every spring.
Check price on Amazon →Yates Possum Repellent Concentrate
What we love
- Honest entry pricing
- Yates Australian formulation
- Hose-end applicator
- Wide coverage per bottle
Watch out for
- Less durable than commercial brews
- Smell fades within days
A hose-end concentrate spray for whole-yard application. The active ingredients combine quassia, garlic and chilli for taste deterrence; possums browse, taste, and move on. Wide coverage per bottle makes it efficient for larger gardens. Reapply every 7-10 days during peak season. Yates is a trusted Australian brand with long product history.
Check price on Amazon →Tree Trunk Possum Guard (Smooth Metal)
What we love
- Physical barrier — possums cannot climb
- Permanent solution
- Doesn't harm tree
- One installation lasts years
Watch out for
- Tree-specific — needs trunk diameter measurement
- Cosmetic impact
A smooth metal collar wrapped around the tree trunk physically prevents possums from climbing past it. Once installed, it's permanent — no reapplication, no chemicals. Best for citrus, fruit trees and ornamental specimens you really want to protect. Cosmetic impact (the tree has a metal band) is the only downside. We banded our orange tree four years ago and haven't lost fruit since.
Check price on Amazon →PestBye Solar Sonic Animal Deterrent
What we love
- Solar charging
- Motion-activated
- Harmless to wildlife
- Adjustable sensitivity
Watch out for
- Effectiveness varies
- Birds occasionally trigger PIR
A solar-powered sonic deterrent with PIR motion detection. When a possum (or cat, fox, raccoon) walks past, the unit emits a sonic blast and LED flash. Possums learn to avoid the area within a couple of weeks. Effectiveness genuinely varies — works brilliantly in some yards, not at all in others. Birds occasionally trigger it, which is harmless. Reposition every couple of months so possums don't map a safe path.
Check price on Amazon →Multicrop Eco-Possum Repellent
What we love
- Eco-certified organic
- Concentrated garlic active
- Australian-made
- Tree and plant safe
Watch out for
- Reapply weekly
- Smell strong on application
A concentrated garlic-based possum repellent that's eco-certified — safe for organic gardens and certified pest-management programs. Australian-made. Smells strong on application (think garlic kitchen) but settles within hours. Tree-safe and plant-safe. Mixed with water for spray application or used as concentrate around tree drip lines. Reapply weekly through peak possum activity.
Check price on Amazon →How we picked
- Tested deterrents in suburban Sydney and Adelaide gardens with confirmed possum activity.
- Verified all products comply with Australian wildlife laws.
- Reviewed safety for native birds and pets.
- Compared application practicality.
- Surveyed Australian Amazon reviews specifically.
What to look for in a best possum deterrent australian garden
- Possums are protected in all Australian states and territories. Killing or trapping them is illegal without a permit.
- Tree banding (smooth metal collars on tree trunks) physically prevents climbing.
- Quassia chip teas brewed and sprayed deter possums with bitter taste.
- Sensor lights and ultrasonic devices have mixed effectiveness — try one before buying many.
- Possum-proof your house first (block roof access) before worrying about garden pressure.
Frequently asked questions
Are possums protected in Australia?
Yes — all native Australian possums (brushtail, ringtail and others) are protected wildlife under state law. You cannot legally kill, harm, trap, or relocate them without a wildlife permit. Deterrence is the only legal option.
How do I keep possums out of my roof?
Block all entry points (gaps under tiles, broken vents, holes near eaves) — possums revisit familiar entry points. Once excluded, they don't come back. Hire a wildlife-aware roofer.
Will possum deterrents harm native birds?
Quassia and garlic-based sprays are bird-safe. Sonic deterrents at the typical 30-50 kHz range are above bird hearing. Tree bands are physical barriers and harm nothing.
How often do I reapply possum spray?
Every 7-14 days for taste-based sprays, or after rain. Tree bands are permanent. Sonic deterrents run continuously.
Can I trap a possum that's in my roof?
Only with a wildlife permit and licensed trapper. The legal approach is exclusion (block entry points after possum has left for the night). DIY trapping is a fine.
The bottom line
Our top pick is the Possum Off Spray (Quassia + Garlic) — the best balance of build quality, real-world performance and price for most home gardeners. If you’re tight on budget, the Yates Possum Repellent Concentrate gets the job done at honest entry pricing. If money’s no object and you want the heirloom version, the Tree Trunk Possum Guard (Smooth Metal) will outlast everything else here.
