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If your dog ate black mondo grass — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 now.

Black Mondo Grass is mildly toxic to dogs (ASPCA).

Pet emergency

My dog ate Black Mondo Grass — what to do

Step by step

  1. Take black mondo grass away and remove any plant material from your dog's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice.
  5. Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.

This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435.

My dog ate black mondo grass — FAQ

Is black mondo grass poisonous to dogs?

Yes — the ASPCA lists Black Mondo Grass (Ophiopogon planiscapus 'Nigrescens') as mildly toxic to dogs. Ophiopogon planiscapus is not individually listed by the ASPCA on either its toxic or non-toxic plant lists, so treat with caution and verify with a vet. No specific toxic principle is documented; as with related lilyturfs, ingestion of foliage or the black berries may cause mild vomiting or gastrointestinal upset in cats and dogs.

How serious is it if my dog ate black mondo grass?

Black Mondo Grass is mildly toxic, so most dogs get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your dog ate a lot or symptoms persist.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Ophiopogon planiscapus is not individually listed by the ASPCA on either its toxic or non-toxic plant lists, so treat with caution and verify with a vet. No specific toxic principle is documented; as with related lilyturfs, ingestion of foliage or the black berries may cause mild vomiting or gastrointestinal upset in cats and dogs. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my dog vomit?

No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.

How do I stop this happening again?

Keep black mondo grass well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.

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