Plants that repel termites: what the claim is worth
Lists of termite-repelling plants are everywhere. None of them replaces a barrier, and some plantings make things worse.
Do plants repel termites?
Not in any way you can rely on. You will find lists of herbs, oils and shrubs said to keep white ants away. But nothing in the official guidance for Australian homes treats a plant as termite protection. A garden bed is not a barrier.
Termites forage underground and find timber by moving through soil. A strip of fragrant plants beside a wall does not stop that. Treat any plant list as a gardening idea, never as a defence for your house.
Why a planting scheme cannot protect the building
Protection works when something physical or chemical sits between the soil and the timber. Australian practice for new work follows AS 3660, and an existing home is checked against AS 4349.3. Neither relies on what you grow.
The risk is also false comfort. If you believe the bed is doing the job, you may stop looking at the slab edge and the subfloor vents, which is where mud tubes show up first.
What matters more is what is planted where
Plants do change conditions around the house, mostly through moisture and cover. Here is how the common situations compare.
| What is near the wall | Why it matters | Better choice |
|---|---|---|
| Dense shrubs touching the wall | Hide the base of the wall and the slab edge from view | Keep plants back so you can see the whole edge |
| Deep mulch against the footing | Holds moisture and covers the inspection zone | Keep mulch clear of the wall and thin near the building |
| Garden beds above the slab edge or damp course | Can bridge the barrier and hide entry | Keep soil levels below the edge, as the building standards expect |
| Timber edging, sleepers and stakes | Dead timber on damp soil is food, and a path to the wall | Choose non-timber edging near the house |
None of these is a repellent. They simply stop the garden from helping termites and hiding them.
What to do if you find termites in a bed
Leave them alone. Do not dig the bed over and do not spray it. Disturbing a colony can push it to feed somewhere else, and the products a technician uses depend on live termites carrying them back.
Look at the nearest wall and slab edge for mud tubes. Then book a licensed inspection, because the bed is rarely the whole story. Why spraying makes it worse is covered on its own page.
Where to put your effort instead
Skip the repellent shopping. Spend the same effort on visibility: clear sightlines, dry soil near the building and no timber touching the ground. Then have a professional inspect on a regular schedule.
If you want a quick read on something you have already found, the termite check tool walks through the evidence without asking you to touch it.
Frequently asked questions
Is there a plant that keeps termites away from a house?
No plant is recognised as termite protection for a house. Termites move through soil and find timber regardless of what is growing above it. Protection comes from a barrier and from regular inspection.
Does mulch attract termites?
Mulch holds moisture and can hide the base of a wall, which makes termite activity harder to spot. Keep it clear of the footing and thin close to the building.
Can I plant a repellent border and skip the barrier?
No. A border does not replace a termite management system, and it can leave you checking the wall less often. Use it, if you like, for the garden only.
I found termites in a garden bed. Should I dig it out?
Leave it. Digging scatters the colony and removes the evidence an inspector reads. Photograph it, check the nearest wall and book a licensed inspection.
Sources
What this page explains is based on these official sources. If you check one and it does not match what you read here, send it to us and the article gets corrected.
- Department of Health, Victoria. Pest control: termites
- Queensland Building and Construction Commission. Protect against termites: termite management systems and inspections
- Standards Australia. Australian Standards (AS 3660 termite management, AS 4349.3 timber pest inspection)
- Australian Building Codes Board. National Construction Code