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Is Choy Sum 'Green Lance' toxic to cats?

Brassica rapa var. parachinensis 'Green Lance'

Mildly toxic to cats

Mildly. The ASPCA lists choy sum 'green lance' 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. ASPCA lists cultivated Brassica/Indian Mustard species as toxic to horses (toxic principle: isothiocyanates; signs include GI irritation and colic). Cats and dogs are not flagged as toxic on that entry and tolerate small cooked amounts, but isothiocyanates and oxalates can cause stomach upset, and large repeated quantities carry thiocyanate risk, particularly in cats. Keep away from horses; verify with a vet if a pet seems unwell.

What to do if your cat ate choy sum 'green lance'

  1. Remove any plant material from your cat's mouth and move choy sum 'green lance' 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 choy sum 'green lance' to the appointment so it can be treated correctly.

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

Is choy sum 'green lance' toxic to cats? — FAQ

Is choy sum 'green lance' toxic to cats?

Mildly. The ASPCA lists choy sum 'green lance' 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. ASPCA lists cultivated Brassica/Indian Mustard species as toxic to horses (toxic principle: isothiocyanates; signs include GI irritation and colic). Cats and dogs are not flagged as toxic on that entry and tolerate small cooked amounts, but isothiocyanates and oxalates can cause stomach upset, and large repeated quantities carry thiocyanate risk, particularly in cats. Keep away from horses; verify with a vet if a pet seems unwell.

What are the symptoms if a cat eats choy sum 'green lance'?

ASPCA lists cultivated Brassica/Indian Mustard species as toxic to horses (toxic principle: isothiocyanates; signs include GI irritation and colic). Cats and dogs are not flagged as toxic on that entry and tolerate small cooked amounts, but isothiocyanates and oxalates can cause stomach upset, and large repeated quantities carry thiocyanate risk, particularly in cats. Keep away from horses; verify with a vet if a pet seems unwell. 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 choy sum 'green lance'.

What should I do if my cat ate choy sum 'green lance'?

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 choy sum 'green lance' toxic to dogs too?

The ASPCA classification Growli uses applies to both cats and dogs: Choy Sum 'Green Lance' is mildly toxic to dogs as well. See the full choy sum 'green lance' pet-safety guide for both species.

What is a cat-safe alternative to choy sum 'green lance'?

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 choy sum 'green lance' pet-safety