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If your dog ate giant reed 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 now. If you cannot reach one, a poison-control line will triage you — ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both services charge a fee.

giant reed grass is mildly toxic to dogs (ASPCA).

Pet emergency

My dog ate giant reed grass — what to do

Step by step

  1. Take giant reed 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 a poison-control line — (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both charge a consultation fee. 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 in the US, or Animal PoisonLine on 01202 509 000 in the UK.

My dog ate giant reed grass — FAQ

Is giant reed grass poisonous to dogs?

Yes — giant reed grass (Arundo donax) is regarded as mildly toxic to dogs, based on genus- and family-level toxicity data. Arundo donax is not individually listed by the ASPCA. The plant contains indole alkaloids (notably tryptamine derivatives including dimethyltryptamine and bufotenine) that have been identified in the rhizome and leaves. These compounds can cause neurological effects in mammals if significant quantities are ingested. As a precaution, this plant should be treated as mildly toxic to pets and kept away from animals that habitually chew vegetation.

How serious is it if my dog ate giant reed grass?

giant reed 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. Arundo donax is not individually listed by the ASPCA. The plant contains indole alkaloids (notably tryptamine derivatives including dimethyltryptamine and bufotenine) that have been identified in the rhizome and leaves. These compounds can cause neurological effects in mammals if significant quantities are ingested. As a precaution, this plant should be treated as mildly toxic to pets and kept away from animals that habitually chew vegetation. 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 a poison-control specialist specifically tells you to. The wrong action can make things worse. Call your vet, or (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK, and follow professional advice.

How do I stop this happening again?

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

Type any plant to see what the ASPCA says about it and your dog.

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