Is Moth Orchid Toxic to Cats and Dogs?
Moth orchids are considered non-toxic to cats and dogs. The American Society for the Prevention of Cruelty to Animals (ASPCA) includes the plant, known by its scientific name Phalaenopsis sp., on its list of plants that are not toxic to these pets. It is also sometimes called a moon orchid.
While the plant itself does not contain any known toxins harmful to cats or dogs, this does not mean it is intended to be eaten. Any plant material can potentially cause mild digestive upset if a pet consumes it, especially if a large amount is eaten. General caution is always recommended when pets are around household plants.
Moth Orchid: what the ASPCA database lists
| ASPCA entry | Phalaenopsis Orchid |
|---|---|
| Other common names | Moth Orchid, Moon Orchid |
| Scientific name | Phalaenopsis sp. |
| Family | Orchidaceae |
| Toxic to | None listed |
| Non-toxic to | Non-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses |
| Toxic principles | None listed |
| Clinical signs listed | None listed |
What the ASPCA says about moth orchids
The ASPCA’s plant database categorizes the Phalaenopsis orchid as non-toxic to dogs, cats, and horses. This means that the plant is not known to contain any substances that are poisonous to these animals. The ASPCA does not list any toxic principles or specific clinical signs of poisoning for the moth orchid because it is not considered a toxic plant.
What this means for a home with pets
Having a moth orchid in a home with cats or dogs is generally considered safe. If a pet chews on a leaf or flower, it is not expected to cause a poisoning emergency. This classification makes it a popular choice for pet owners who want to have houseplants.
However, it is still a good practice to supervise pets around any plant. Discouraging pets from chewing on plants helps prevent them from developing a habit that could be dangerous with other, toxic plants. Keeping plants out of a pet’s easy reach is a simple way to protect both the plant and the animal.
Points to consider with any non-toxic plant
Even though moth orchids are non-toxic, there are a few general safety points to remember for any plant in a pet-friendly household.
- Digestive Upset: Eating plant matter can cause stomach upset, vomiting, or diarrhea in some cats and dogs. Their digestive systems are not designed to process large amounts of fibrous plant material. If your pet eats a large piece of a moth orchid, it could lead to discomfort.
- Choking Hazard: Tough leaves, stems, or flowers could become a choking hazard, particularly for smaller pets or those that eat quickly without chewing properly.
- Added Chemicals: Be mindful of any pesticides, insecticides, or fertilizers used on the plant or in its soil. These substances can be harmful if ingested. It is best to use products that are explicitly labeled as safe for use around pets.
- Potting Materials: Some orchids are potted in materials like bark chips or sphagnum moss. While generally not toxic, swallowing these materials could cause digestive problems or an intestinal blockage if a pet eats a significant amount.
When to call your vet
A non-toxic listing means the plant is not expected to poison pets, not that eating it is harmless. Call your vet if your pet shows any of the signs below after chewing on a plant.
If your pet eats part of a moth orchid and shows signs of distress such as vomiting, diarrhea, or loss of appetite, it is best to contact your veterinarian. For any urgent concerns about something your pet has ingested, call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435. Be prepared to share what your pet ate, how much, and when.
Emergency signs: go now
- Collapse, fainting or severe weakness
- Seizures, tremors or trouble standing
- Trouble breathing or blue, gray or very pale gums
- Repeated vomiting or retching, or a swollen, painful belly
- Any known contact with a substance listed as toxic, even before signs appear
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- Vomiting or diarrhea that lasts or keeps coming back
- Not eating or drinking, or drinking much more than usual
- Drooling, pawing at the mouth or a swollen face
- Lethargy, hiding or acting unlike themselves
ASPCA Animal Poison Control Center: (888) 426-4435 (a consultation fee may apply). Your own vet or nearest emergency clinic is always a good first call.
Sources
Last checked October 21, 2026. Listings and guidance can change; your veterinarian knows your pet’s health history.