The plants toxic to cats that cause the most serious harm are true lilies, sago palms, oleander and azaleas, while lavender, mint, snake plants and fiddle leaf figs are listed as mildly toxic. The biggest mistake is assuming “natural” means safe, especially with essential oils such as tea tree and lavender oil.
This guide lists plants toxic to cats in Sydney homes and gardens, answers the herb and houseplant questions we hear most, and shows what to do if your cat chews something. For any suspected poisoning, call your vet or the Animal Poisons Helpline straight away.
Key points
- The highest-risk plants toxic to cats in Sydney gardens are true lilies, sago palms, oleander and azaleas, so remove or fence them off before a cat moves in.
- Lavender, mint, snake plants, fiddle leaf figs and jade plants are commonly listed as toxic to cats, while spider plants, basil and rosemary are generally listed as non-toxic.
- If your cat chews any plant, contact your vet or the Animal Poisons Helpline immediately; never try home treatment or dosing.
- A Sydney gardener charges about $52 to $115 per hour (October 2026) to remove risky plants and replace them with pet-friendly ones.
Plants toxic to cats: the high-risk list for Sydney gardens
Toxicity lists vary between sources, and a plant’s risk depends on the part eaten and how much. Treat this table as a guide and confirm any plant with your vet.
| Plant | Where you see it | What owners and vets report |
|---|---|---|
| True lilies (Lilium, Hemerocallis) | Cut flowers, garden beds, bouquets | Listed as extremely dangerous to cats, including pollen and vase water; call a vet at once. |
| Sago palm (Cycas) | Front gardens, pots, courtyards | Listed as severely toxic; vomiting is the first sign owners usually report. |
| Oleander | Hedges and screens in western Sydney | Every part is listed as toxic and can affect the heart. |
| Azalea and rhododendron | Shady beds on the north shore | Drooling, vomiting and weakness are commonly reported after chewing. |
| Cyclamen and kalanchoe | Indoor gift plants | Listed as toxic; mouth irritation and stomach upset are typical. |
| Dumb cane (Dieffenbachia) | Indoor pots in living rooms | Sap can irritate the mouth and cause drooling. |
What plants are toxic to cats? Common herbs and garden plants
Herbs sit close to the back door, so cats nibble them often. Lists from veterinary sources disagree in places, so check with your vet before you plant.
| Question | Commonly listed answer | Tip |
|---|---|---|
| Is lavender safe for cats? | Listed as mildly toxic; the plant contains compounds that can upset a cat’s stomach. | Plant it where your cat can’t reach, or choose a safer border plant. |
| Is lavender toxic to cats? | Yes, commonly listed as mildly toxic, with vomiting and lethargy reported. | Call your vet if your cat eats flowers or stems. |
| Is rosemary safe for cats? | The plant is generally listed as non-toxic, but rosemary oil is concentrated. | Keep oils and extracts away from cats. |
| Is basil toxic to cats? | Generally listed as non-toxic, so basil is usually considered safe in small nibbles. | Large amounts of any plant can still upset a stomach. |
| Is mint toxic to cats? | Listed as toxic in many sources, with vomiting and diarrhoea reported. | Grow mint in a pot on a high ledge, not at ground level. |
| Are roses poisonous to cats? | Rose petals and stems are generally listed as non-toxic, though thorns scratch. | Watch for fertiliser or spray residue on leaves. |
Plants toxic to cats indoors: which indoor plants are safe for cats?
Indoor plants sit within easy reach of a bored cat. Choose the safer list below, and move any listed-toxic plants somewhere your cat cannot go.
- Spider plants: generally listed as non-toxic to cats and dogs, though chewing a lot of leaf can cause a mild stomach upset.
- Boston fern: commonly listed as non-toxic to cats, and it handles the humid bathroom or kitchen window well.
- Parlour palm: commonly listed as non-toxic and a low-light option for Sydney apartments and units.
- Calathea and prayer plants: generally listed as non-toxic, though they need steady moisture and indirect light to keep their leaf colour.
- Snake plants: commonly listed as toxic to cats and dogs, causing vomiting and nausea, so keep them well out of reach.
- Fiddle leaf figs: listed as toxic to cats because the sap irritates the mouth, so choose a different statement plant.
Are spider plants and snake plants toxic to dogs too?
Many homes have both a cat and a dog, so it helps to check each plant for both. This table shows how commonly cited lists treat the most-asked plants.
| Plant | Cats | Dogs |
|---|---|---|
| Spider plant | Generally listed as non-toxic | Generally listed as non-toxic; are spider plants toxic to dogs? Usually no |
| Snake plant | Listed as toxic (mild) | Listed as toxic (mild); are snake plants toxic to dogs? Yes, commonly |
| Jasmine (true Jasminum) | Generally listed as non-toxic | Generally listed as non-toxic |
| Yellow jessamine (Gelsemium) | Listed as highly toxic | Listed as highly toxic |
| Fiddle leaf fig | Listed as toxic | Listed as toxic |
| Rosemary and basil | Generally listed as non-toxic | Generally listed as non-toxic |
Is jasmine toxic to cats? Plants and common name mix-ups
Common names cause most of the confusion. Several plants called “jasmine” are unrelated to true jasmine and carry very different risks.
- True jasmine (Jasminum) is generally listed as non-toxic to cats and dogs, so the answer to “is jasmine toxic to dogs” is usually no.
- Star jasmine is a different plant, often grown on Sydney fences, and sources disagree on it, so ask your vet before relying on it.
- Yellow jessamine (Gelsemium) is not a true jasmine and is listed as highly toxic to cats and dogs.
- Check the botanical name on the tag at the nursery, not just the common name on the front.
- If you’re unsure which plant you have, photograph the leaves and flowers and show a nursery or your vet.
- When in doubt, treat the plant as unsafe and keep your cat away until you’ve confirmed it.
Are tea tree oil and lavender oil safe for cats?
Essential oils are more concentrated than the plants they come from. Cats process many compounds slowly, so vets commonly warn against using oils around them.
- Tea tree oil is commonly reported as harmful to cats, whether applied to the skin, used in shampoo or diffused in a room.
- Lavender oil is not considered safe to use on cats, and a diffuser in a small closed room concentrates the vapour.
- Never rub oils on your cat or put them in its water, even if a product says it is “natural”.
- Check cleaning products, flea treatments and candles, because many contain tea tree, citrus or other oils.
- If your cat has licked or walked through an oil, call your vet or the Animal Poisons Helpline straight away.
- Air out the room and keep the container for the vet to read, but don’t try to treat the cat yourself.
Plants toxic to cats: how to make your garden safer
- Walk the garden and list every plant, then check each botanical name against a vet-reviewed toxicity list before your cat goes outside.
- Remove lilies, sago palms and oleander first, because these are the plants vets most often list as dangerous to cats.
- Move listed-toxic potted plants to a high shelf or a room your cat cannot enter.
- Keep garden products such as snail bait, fertiliser and weed killer locked away, and follow the label on every one.
- Sweep up fallen flowers and berries, which cats can chew when the wind drops them on the lawn.
- Offer cat grass or a pet-safe pot so your cat has something legal to chew.
- Ask a gardener to dig out and dispose of risky shrubs if they are large or hard to reach.
Common mistakes with plants toxic to cats
- Trusting one website: lists disagree, so cross-check the plant with your vet.
- Bringing home bouquets containing lilies, even a few stems and pollen can be dangerous.
- Assuming herbs are always safe, when mint and lavender are commonly listed as toxic.
- Using essential oils or diffusers because they smell “natural”.
- Waiting to see if symptoms develop instead of calling a vet straight away.
- Trying home remedies or giving any treatment before speaking to a vet.
When to call a vet, the Animal Poisons Helpline or a gardener
- Call your vet or the Animal Poisons Helpline immediately if your cat has chewed a plant, drooled, vomited or seems unusually sleepy.
- Take a sample or photo of the plant with you so the vet can identify it quickly.
- Never give food, milk, salt water or any medicine to make the cat vomit, because that can make things worse.
- Book a gardener for large shrubs or hedges such as oleander, which are heavy and awkward to remove safely.
- Check your council’s tree rules before removing a large tree, and use a qualified arborist for work above head height.
- Book a licensed pest controller if you suspect snail bait or rodent bait, rather than treating it yourself.
Cost to remove plants toxic to cats in Sydney
Prices include GST and are Sydney metro rates for October 2026.
| Job | Low | Typical | High |
|---|---|---|---|
| Gardener, per hour | $52 | $75 | $115 |
| Weed removal, per hour | $57 | $75 | $105 |
| Garden clean-up, half day | $170 | $290 | $460 |
| Garden clean-up, full day | $320 | $520 | $805 |
| Hedge trimming, small hedge | $69 | $115 | $205 |
FAQ: plants toxic to cats
Is lavender safe for cats?
Lavender is commonly listed as mildly toxic to cats, and the oil is stronger again. Vomiting and lethargy are the signs owners usually report. If your cat has chewed lavender or licked the oil, call your vet or the Animal Poisons Helpline rather than waiting.
What plants are toxic to cats?
True lilies, sago palms, oleander and azaleas are the most serious plants toxic to cats. Lavender, mint, snake plants, fiddle leaf figs and cyclamen are also commonly listed. Lists vary, so confirm any plant with your vet and keep your cat away until you do.
Is tea tree oil safe for cats?
No. Vets commonly warn that tea tree oil is harmful to cats, whether on the skin, in shampoo or in a diffuser. Cats can’t clear many oils quickly. If your cat has been exposed, call your vet immediately and take the product label with you.
What indoor plants are safe for cats?
Spider plants, Boston ferns, parlour palms and calatheas are generally listed as non-toxic to cats. Snake plants and fiddle leaf figs are not. Even safe plants can cause a stomach upset if a cat eats a lot, so confirm your choices with your vet.
Making your Sydney garden pet-safe
If you’d rather not dig out oleander, sago palms or overgrown shrubs yourself, we can clear them and replace them with pet-friendlier plants. Book garden maintenance in Sydney, or read our types of flower guide to choose replacements.
