Dreamcatcher Alpacas
Alpaca health · Poisoning

Plant Poisoning (overview) in Alpacas

Updated 2026-10-02By the Dreamcatcher Alpacas editorial team6 peer-reviewed references
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Emergency — call your vet now

This condition can kill within hours. Get veterinary help immediately.

Alpacas are selective browsers, but hunger, boredom and garden waste lead to poisonings — some fatal within hours.

Category
Poisoning
Urgency
Emergency

Signs & symptoms

  • Sudden death
  • Green regurgitation and drooling
  • Colic, diarrhea
  • Trembling, staggering, seizures
  • Rapid breathing, discolored gums

Related symptom guides: Alpaca Not Eating, Alpaca Diarrhea (Loose Stool), Drooling & Green Slobber, Fast or Heavy Breathing, Rolling, Kicking at Belly (Colic Signs), Sudden Death in an Alpaca.

What causes it?

Toxic ornamentals (yew, oleander, rhododendron, pieris), wilted cherry and red maple leaves, weeds in hay, and garden clippings.

Risk factors

  • Hungry animals in new pastures
  • Hedge and garden clippings thrown over fences
  • Storm-damaged trees
  • Weedy hay

How vets diagnose it

History, plant samples and stomach contents.

Treatment

Call your vet immediately. Bring a sample of the plant. Activated charcoal or specific antidotes may help some poisonings.

Do not wait to see if it improves. Camelids hide illness, and by the time signs are obvious the problem is often advanced. Call your veterinarian.

Prevention

  • Walk every paddock and fence line and remove toxic plants
  • Never feed clippings
  • Check paddocks after storms

Research & references

PubMed lists 16 peer-reviewed papers on this topic in camelids. The most relevant include:

  1. Intoxication of llamas by Astragalus punae in Argentina. Marin RE, Gardner DR, Armien AG et al. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc, 2022. PubMed 35524435 · DOI · cited 7×
  2. Diagnosis of oleander poisoning in livestock. Galey FD, Holstege DM, Plumlee KH et al. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc, 1996. PubMed 8844581 · DOI · cited 44×
  3. Rhododendron poisoning in alpacas (Vicugna pacos) in Northern Germany. Schregel J, Zdora I, Gerhauser I et al. Veterinary research communications, 2024. PubMed 38483734 · DOI · Free full textOpen access · cited 3×
  4. Intoxication by Astragalus garbancillo var. garbancillo in llamas. Marin RE, Micheloud JF, Vignale ND et al. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc, 2020. PubMed 32233843 · DOI · cited 7×
  5. Oleander intoxication in New World camelids: 12 cases (1995-2006). Kozikowski TA, Magdesian KG, Puschner B Journal of the American Veterinary Medical Association, 2009. PubMed 19650704 · DOI · cited 11×
  6. Noninfectious diseases, metabolic diseases, toxicities, and neoplastic diseases of South American camelids. Smith JA The Veterinary clinics of North America. Food animal practice, 1989. PubMed 2647230 · DOI · cited 45×

Frequently asked questions

What is plant Poisoning (overview) in alpacas?
Alpacas are selective browsers, but hunger, boredom and garden waste lead to poisonings — some fatal within hours.
What are the signs of plant Poisoning (overview)?
Sudden death, green regurgitation and drooling, colic, diarrhea, trembling, staggering, seizures and rapid breathing, discolored gums.
How do you prevent plant Poisoning (overview)?
Walk every paddock and fence line and remove toxic plants. Never feed clippings. Check paddocks after storms.
Is plant Poisoning (overview) an emergency?
Emergency — call your vet now. This condition can kill within hours. Get veterinary help immediately.

This page is educational and does not replace advice from a veterinarian who has examined your animals. Camelid medicine uses many drugs “extra-label”, so dosing must come from your vet. In an emergency, call your vet first. Read our disclaimer · How we write and review content.