Pet safety
Is Bok Choy 'Black Summer'toxic to cats & dogs?
Brassica rapa var. chinensis 'Black Summer'
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Brassica rapa var. chinensis 'Black Summer'
Is bok choy 'black summer' safe for cats and dogs?
Not entirely — bok choy 'black summer' is mildly toxic to cats and dogs. It rarely causes serious harm, but chewing it triggers real discomfort, so keep it out of a pet's reach. 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. Brassica rapa vegetables are not individually listed on the ASPCA toxic plant database, so a pet-safe label cannot be asserted; treat with caution and verify with a vet. Brassicas contain isothiocyanates and small amounts of goitrogens, and large quantities can cause gas, GI upset, or thyroid effects in pets, so feed only sparingly.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats bok choy 'black summer'?
Brassica rapa vegetables are not individually listed on the ASPCA toxic plant database, so a pet-safe label cannot be asserted; treat with caution and verify with a vet. Brassicas contain isothiocyanates and small amounts of goitrogens, and large quantities can cause gas, GI upset, or thyroid effects in pets, so feed only sparingly. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to bok choy 'black summer', treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate bok choy 'black summer'
- Remove any plant material from your pet's mouth and move bok choy 'black summer' 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 bok choy 'black summer' 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.
Pet-safe alternatives to bok choy 'black summer'
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Cucumber — non-toxic to cats and dogs (care guide)
- Lettuce — non-toxic to cats and dogs (care guide)
- Bean — non-toxic to cats and dogs (care guide)
- Pea — non-toxic to cats and dogs (care guide)
Bok Choy 'Black Summer' and pets — frequently asked questions
Is bok choy 'black summer' toxic to cats?
Bok Choy 'Black Summer' (Brassica rapa var. chinensis 'Black Summer') is mildly toxic to cats according to the ASPCA. Brassica rapa vegetables are not individually listed on the ASPCA toxic plant database, so a pet-safe label cannot be asserted; treat with caution and verify with a vet. Brassicas contain isothiocyanates and small amounts of goitrogens, and large quantities can cause gas, GI upset, or thyroid effects in pets, so feed only sparingly. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is bok choy 'black summer' toxic to dogs?
Per the ASPCA, Bok Choy 'Black Summer' (Brassica rapa var. chinensis 'Black Summer') is mildly toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like bok choy 'black summer' is best removed from the floor and low shelves entirely.
What happens if my pet eats bok choy 'black summer'?
Brassica rapa vegetables are not individually listed on the ASPCA toxic plant database, so a pet-safe label cannot be asserted; treat with caution and verify with a vet. Brassicas contain isothiocyanates and small amounts of goitrogens, and large quantities can cause gas, GI upset, or thyroid effects in pets, so feed only sparingly. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to bok choy 'black summer', treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate bok choy 'black summer'?
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 bok choy 'black summer' to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to bok choy 'black summer'?
If you want a similar look without the risk, good non-toxic swaps include cucumber, lettuce, bean, pea. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full bok choy 'black summer' care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete bok choy 'black summer' care guide, or browse the full pet-safe plant library to check another plant before you buy it.