Updated April 13, 2021
More and more Australians are building an outdoor enclosure, or catio for their cat. Some make it themselves, others pay specialist companies to do it. Either way, there are two things that often get overlooked.
The first, assuming you plan on using them, is choosing plants that are safe for cats. I cover that later with an Australian perspective. The second is designing the space from a cat point of view.
What Makes A Good Cat Garden?
Here’s what cats generally like when outdoors. The more of these we can provide, the more useful (and used) the space will be.
- Hiding places so cats can see but not be seen
- Basking places for when cats want to stretch out in the sun
- Dry dirt to roll in and condition the coat
- High places to watch passers by and birds
- Grass to nibble and reduce chewing of other plants
- Disorder for the jungle cat within
So with that in mind, now let’s select the right plants.
Safe & Non-Toxic Plants For Cats
As a general rule, the showier the plant, the more likely it is to be poisonous. But it’s also worth pointing out that any plant can be toxic if enough is eaten. The items marked with an asterisk (*) have no data but widespread usage suggests that they are safe.
Grasses and Strap-Leafed Plants
To me, these are the most important. Cats love to hang out under the drooping leaves of low, strappy plants. Plantings probably need to be close together to create tunnels or thickets.
- Clumping grasses, especially Lomandra*
- Cordyline australis & rubra (others less known)
- Kangaroo Paw*
- Sedges (Carex species)*
Notable mention must also go to Dietes (no information is available but I have several) and Dutch or Wood Irises, in which my previous cat made tunnels. Despite being theoretically toxic, the risk seems very low. Bamboo is also good as a screening plant.
- Catnip, Cat mint & Cat thyme (worth a try to see if your cat likes them)
- Diosma (Coleonema pulchrum)*
- Ferns & Palms (most are fine but avoid Bracken & Cycads)
- Pittosporum tobira (‘Miss Muffet’ is my favourite)
- Plumbago auriculata (will need trimming)
- Rosemary (may attract bees)
- Star Jasmine (more of a climber but great on fences)
Camellias are also great but very tricky to grow well in our Mediterranean climate.
Aussie shrubs are great for cats as they’re often a bit more open and straggly. They’re great for owners too as they’re tough. Many of these are theoretically poisonous due to the irritant oils they contain but in practice cats find them too unpleasant to nibble.
- Callistemon (bottle brush)
- Lilly pilly (Syzygiums come in a wide variety of sizes so don’t get a tree by mistake)*
- Westringia fruticosa (‘Native rosemary’)*
I hope these lists give you enough to go on. I haven’t mentioned trees, but with the notable exceptions of oleander and white cedar, poisonings are even rarer. As always, I’d appreciate your comments and questions.
You can also find a long list of the plants that aren’t recommended at our similar page on safe & toxic plants for dogs.
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By Andrew Spanner BVSc(Hons) MVetStud, a vet in Adelaide, Australia. These articles are from a series regularly posted on email and Twitter. Subscribe via email here to never miss a story!