Ambrosia Mexicana

Yes, Ambrosia Mexicana is considered potentially toxic to cats. It contains compounds that can cause gastrointestinal distress if ingested, so it should be kept out of reach of cats.

The most common signs are vomiting, drooling, diarrhea, and abdominal discomfort. Cats may also refuse food and appear depressed or unusually withdrawn. Severity is typically mild to moderate.

Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 if you saw your cat chewing the plant or if vomiting, food refusal, or lethargy develops. Same-day evaluation is appropriate — don't wait overnight to see if symptoms resolve.

ASPCA does not publish a specific onset or recovery window for this plant. Monitor your cat closely for 12–24 hours after a known or suspected nibble, watching for vomiting, refusal to eat, drooling, or unusual withdrawal.

Yes, Ambrosia Mexicana (Chenopodium botrys) is considered potentially toxic to dogs. It contains compounds that can cause gastrointestinal distress if ingested, though effects are typically mild unless a significant amount is eaten.

Watch for vomiting, lethargy, loss of appetite, and gastrointestinal irritation. Dogs that chew enthusiastically or eat a larger amount may also show drooling or loose stool.

Call ASPCA Animal Poison Control at (888) 426-4435 or your vet right away if your dog vomits more than once, refuses to eat, or seems unusually subdued — and call immediately if a large amount was consumed or symptoms are worsening. Monitor your dog closely for at least 24 hours, as plant-related GI signs typically appear within a few hours of ingestion.

Exact onset times are not well documented for this plant specifically, but most plant-related GI signs in dogs show up within a few hours of ingestion. Track your dog over the next 24 hours and escalate to a vet if any symptoms appear or worsen.