Pet safety
Is Hemp-leaved Marshmallowtoxic to cats & dogs?
Althaea cannabina
Quick verdict — at a glance
- Toxic to cats?
- No — non-toxic
- Toxic to dogs?
- No — non-toxic
- ASPCA classification
- Pet-safe · botanical name Althaea cannabina
Is hemp-leaved marshmallow safe for cats and dogs?
Yes — ASPCA non-toxic to both cats and dogs. Hemp-leaved Marshmallow is a sensible choice for a pet household; a curious nibble will not poison anyone. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Althaea species are not listed as toxic by ASPCA; the genus contains mucilaginous polysaccharides with no known toxic principles to dogs or cats. A. cannabina is not individually ASPCA-listed, but no toxic compounds have been reported. Mild GI effects are possible if large quantities are consumed. Not related to Cannabis.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | No | Pet-safe |
| Dogs | No | Pet-safe |
What happens if a pet eats hemp-leaved marshmallow?
Because hemp-leaved marshmallow is non-toxic, a curious nibble will not poison a cat or dog. That said, no plant is meant to be eaten: a large quantity of any foliage can still cause mild, short-lived stomach upset or vomiting simply through fibre and volume. Persistent vomiting, diarrhoea, or lethargy after eating any plant is always worth a call to your vet, because the reaction may be to soil, fertiliser, or a pesticide rather than the plant itself.
What to do if your pet ate hemp-leaved marshmallow
- Remove any plant material from your pet's mouth and move hemp-leaved marshmallow out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of hemp-leaved marshmallow to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Hemp-leaved Marshmallow and pets — frequently asked questions
Is hemp-leaved marshmallow toxic to cats?
Hemp-leaved Marshmallow (Althaea cannabina) is non-toxic to cats according to the ASPCA. Althaea species are not listed as toxic by ASPCA; the genus contains mucilaginous polysaccharides with no known toxic principles to dogs or cats. A. cannabina is not individually ASPCA-listed, but no toxic compounds have been reported. Mild GI effects are possible if large quantities are consumed. Not related to Cannabis. It is a sensible pick for a cat household, though no plant should be a regular snack.
Is hemp-leaved marshmallow toxic to dogs?
Per the ASPCA, Hemp-leaved Marshmallow (Althaea cannabina) is non-toxic to dogs. Dogs that gulp large amounts of any foliage can still get a mild, brief stomach upset, so discourage grazing even on a non-toxic plant.
What happens if my pet eats hemp-leaved marshmallow?
Because hemp-leaved marshmallow is non-toxic, a curious nibble will not poison a cat or dog. That said, no plant is meant to be eaten: a large quantity of any foliage can still cause mild, short-lived stomach upset or vomiting simply through fibre and volume. Persistent vomiting, diarrhoea, or lethargy after eating any plant is always worth a call to your vet, because the reaction may be to soil, fertiliser, or a pesticide rather than the plant itself.
What should I do if my cat or dog ate hemp-leaved marshmallow?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of hemp-leaved marshmallow to the appointment helps the vet treat it correctly.
Which other plants are safe for cats and dogs?
Reliable non-toxic houseplants on the ASPCA list include spider plant, areca palm, calathea, peperomia, and most true ferns. You can browse Growli's full pet-safety library to check any plant before you buy it, and every entry cites the ASPCA classification it is based on.
Full hemp-leaved marshmallow care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete hemp-leaved marshmallow care guide, or browse the full pet-safe plant library to check another plant before you buy it.