Growli
Let's go

Pet safety

Is Mustard Greens 'Red Giant' toxic to cats?

Brassica juncea var. rugosa 'Red Giant'

Mildly toxic to cats

Mildly. The ASPCA lists mustard greens 'red giant' as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List. The ASPCA lists 'White/Black/Yellow Indian Mustard' (Brassica species, family Brassicaceae) as toxic to horses, with isothiocyanates as the toxic principle causing gastrointestinal irritation and colic; it is not listed as toxic to cats or dogs. As Brassica juncea, treat 'Red Giant' as a caution: large amounts of raw mustard greens can irritate the GI tract of cats and dogs, so feed only sparingly and verify with a vet, and keep horses away from the crop and seed.

What to do if your cat ate mustard greens 'red giant'

  1. Remove any plant material from your cat's mouth and move mustard greens 'red giant' out of reach.
  2. Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
  3. Do not induce vomiting unless a vet or poison-control specialist instructs you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
  5. Bring a leaf or photo of mustard greens 'red giant' to the appointment so it can be treated correctly.

General guidance, not veterinary advice. If you think your cat has eaten mustard greens 'red giant', contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.

Is mustard greens 'red giant' toxic to cats? — FAQ

Is mustard greens 'red giant' toxic to cats?

Mildly. The ASPCA lists mustard greens 'red giant' as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. The ASPCA lists 'White/Black/Yellow Indian Mustard' (Brassica species, family Brassicaceae) as toxic to horses, with isothiocyanates as the toxic principle causing gastrointestinal irritation and colic; it is not listed as toxic to cats or dogs. As Brassica juncea, treat 'Red Giant' as a caution: large amounts of raw mustard greens can irritate the GI tract of cats and dogs, so feed only sparingly and verify with a vet, and keep horses away from the crop and seed.

What are the symptoms if a cat eats mustard greens 'red giant'?

The ASPCA lists 'White/Black/Yellow Indian Mustard' (Brassica species, family Brassicaceae) as toxic to horses, with isothiocyanates as the toxic principle causing gastrointestinal irritation and colic; it is not listed as toxic to cats or dogs. As Brassica juncea, treat 'Red Giant' as a caution: large amounts of raw mustard greens can irritate the GI tract of cats and dogs, so feed only sparingly and verify with a vet, and keep horses away from the crop and seed. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your cat has had access to mustard greens 'red giant'.

What should I do if my cat ate mustard greens 'red giant'?

Stay calm. Remove any plant from your cat's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

Is mustard greens 'red giant' toxic to dogs too?

The ASPCA classification Growli uses applies to both cats and dogs: Mustard Greens 'Red Giant' is mildly toxic to dogs as well. See the full mustard greens 'red giant' pet-safety guide for both species.

What is a cat-safe alternative to mustard greens 'red giant'?

For a similar look without the risk, see the best cats-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.

Full mustard greens 'red giant' pet-safety