Last updated on October 12, 2026
No, Christmas cactus is not toxic to cats. The ASPCA lists Christmas cactus (Schlumbergera bridgesii) as non-toxic to cats, dogs and horses. That same organization says any plant a pet chews can cause mild stomach upset, because plants aren’t part of its normal diet.
So is Christmas cactus toxic to cats in a way that should send you to the vet after one bite? Usually not. I check every plant against the ASPCA list before it comes home, and this is one of the easy ones. The holiday plants worth worrying about are elsewhere on the shelf, and they’re in the table further down.
What happens if a cat eats a Christmas cactus?
A cat that eats a Christmas cactus may vomit once or have a loose stool, and most cats show nothing at all. Its ASPCA rating is non-toxic, with a warning that “non-toxic” doesn’t mean “no problem,” since some pets get mild stomach upset from eating any kind of plant.
Finding a flat green segment on the floor with tooth marks in it is alarming. What to do next is simple:
- Take away any pieces the cat can still reach and offer fresh water.
- Watch for the next day. A single episode of vomiting fits the mild upset the ASPCA describes.
- Call your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 if vomiting keeps happening, your cat stops eating or seems lethargic, or you aren’t sure the plant was a Christmas cactus.
That last point matters more than it sounds. Jade plant, kalanchoe and pencil cactus are also sold as gift succulents, and the ASPCA lists all three as toxic.
Thanksgiving and Easter cactus: are they safe too?
Easter cactus is covered. On the ASPCA’s Christmas cactus entry, Easter cactus appears as another common name for the same listing, so it carries the same non-toxic rating.
Thanksgiving cactus (Schlumbergera truncata) has no separate entry in the ASPCA plant database. A close relative in the same genus, it still has no published ASPCA rating, so treat it like any plant with no rating and keep it where your cat can’t graze on it. Purdue University’s horticulture team tells them apart by the stem segments: a Thanksgiving cactus has two to four pointed teeth on each segment, while a Christmas cactus has scalloped, rounded edges.
Mix-ups are common. When one grower shared a five-year-old plant as a Christmas cactus, the top reply corrected the name:
“Beautiful! I believe this is a Thanksgiving cactus :)”
– r/IndoorGarden, November 2025 (191 upvotes)
Holiday plants that are toxic to cats, and how serious each is
Christmas cactus is the safe one on the holiday shelf. Lilies are the ones to keep out of the house. Everything else falls in between, and the ASPCA’s own descriptions show how far apart they are.
| Plant | ASPCA verdict for cats | What it can cause | How serious |
|---|---|---|---|
| Christmas cactus, Easter cactus | Non-toxic | Mild stomach upset at most | Safe to keep |
| Norfolk Island pine | Non-toxic | Mild stomach upset at most | Safe to keep |
| Poinsettia | Toxic (irritant sap) | Mouth and stomach irritation, sometimes vomiting; the ASPCA calls it “generally over-rated in toxicity” | Mild |
| Holly | Toxic (saponins) | Vomiting, diarrhea, depression; leaves and berries are low toxicity | Mild |
| American mistletoe | Toxic | Vomiting, diarrhea; rarely low blood pressure, breathing trouble, slow heart rate | Call a vet |
| Cyclamen | Toxic (saponins) | Drooling, vomiting, diarrhea | Call a vet |
| Kalanchoe | Toxic | Vomiting, diarrhea; rarely an abnormal heart rhythm | Call a vet |
| Amaryllis | Toxic (lycorine) | Vomiting, diarrhea, belly pain, drooling, tremors | Call a vet |
| Paperwhite narcissus | Toxic (lycorine) | Vomiting, drooling, diarrhea; large amounts cause tremors and heart rhythm problems | Call a vet |
| Lilies (Easter lily and other true lilies) | Toxic to cats | Kidney failure; death is possible | Emergency |
Lilies are in a class of their own. The FDA says a cat that eats a small piece of a true lily or daylily, licks pollen off its fur, or drinks vase water can develop fatal kidney failure in less than three days, and that treatment delayed 18 hours or more generally can’t reverse it. Holiday bouquets often include lilies, so look at every arrangement that comes through the door. Two other holiday questions have their own pages: are poinsettias poisonous to cats and are Christmas trees toxic to cats.
Peace lilies and calla lilies aren’t true lilies and don’t cause kidney failure, which is a separate question covered in are peace lilies toxic to cats.
Keeping a Christmas cactus in a home with cats
You don’t need to give the plant away. Your real risk is a stomach upset, plus a chewed plant that won’t bloom as well. If yours has stopped flowering, see how to get Christmas cactus to bloom.
Some owners go further and give the plants their own room. This holiday cactus owner moved hers into a closed bathroom with a grow light:
“I had a bunch of office plants when my work moved home for a COVID. My cat is aggressively plant murderous, so at my house I had to sequster them in a closed bathroom. The light's not great, so as a temporary thing I clipped up a grow light on a timer. Then, of course, COVID turned out to be a whole thing (lol). My job became permanent WFH and ai never gave the plants or their light another thought. A few months ago I randomly came across a picture of a holiday cacti and it hit me the color on…” [excerpt — 796 characters in full]
– r/houseplants, December 2025 (413 upvotes)
- Put it up high or in a room the cat doesn’t use. The segments snap off easily, and a cat batting at a trailing stem can knock the pot over.
- Keep the gift tag or the photo you took at the store. The ASPCA suggests keeping a list of the scientific names of your plants, because common names overlap and toxicity can vary between species.
- Group it with other safe plants. A shelf of non-toxic plants is easier to manage than checking each pot one at a time.
Is Christmas cactus toxic to cats FAQ
Is Christmas cactus toxic to dogs?
No. Christmas cactus is listed by the ASPCA as non-toxic to dogs as well as cats and horses. A dog that eats a lot of it may still vomit, since the ASPCA says any plant can cause mild stomach upset in pets.
Can you keep a Christmas cactus if you have a cat?
Yes, a Christmas cactus is one of the safer holiday plants for a home with cats. With an ASPCA rating of non-toxic, the realistic worst case is mild vomiting and a few broken stems.
What is the most toxic holiday plant for cats?
True lilies, including the Easter lily, are the most dangerous holiday plants for cats. The ASPCA lists kidney failure and possible death, and the FDA says it can happen in less than three days from a small amount, even pollen.
For more plants you can keep without a backup plan, see the list of pet friendly indoor plants, each one checked against the ASPCA.
Ellie Marsh
Houseplant grower who spent years in a north-facing apartment. Writes practical care guides for low light homes, checked against extension and botanical garden sources.
