Dreamcatcher Alpacas
Plant safety · Toxic

Is Hydrangea Poisonous to Alpacas?

Hydrangea (Hydrangea spp.) — a shrub. Here is what alpaca owners need to know.

Updated 2026-10-02By the Dreamcatcher Alpacas editorial team
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Yes — hydrangea is toxic to alpacas.

Keep it out of pastures, hay and reach of fences, and never feed trimmings.

Hydrangea (Hydrangea spp.)
Hydrangea (Hydrangea spp.). Photo: 3268zauber, CC BY-SA 3.0 via Wikimedia Commons.
Status
Toxic
Scientific name
Hydrangea spp.
Family
Hydrangeaceae
Plant type
Shrub
Toxic parts
Leaves and buds
Toxic compound
Cyanogenic glycosides (hydrangin)

Why it matters

A common garden shrub. Keep it outside fences.

Signs of hydrangea poisoning in alpacas

  • Drooling
  • Loss of appetite
  • Diarrhea
  • Colic or abdominal discomfort
  • Rapid breathing in large amounts

Signs can appear within minutes (cyanide, cardiac toxins) or only after weeks of exposure (liver toxins). Many poisoned camelids are simply found dead, so prevention is everything.

What to do if your alpaca ate hydrangea

  1. Move the herd away and remove any remaining plant material, clippings or fallen leaves.
  2. Call your veterinarian immediately, even if the alpaca looks normal. Say what was eaten, roughly how much and when.
  3. Cyanide poisoning moves fast — your vet may have a specific antidote, so speed matters more than anything.
  4. Bring a sample or clear photo of the plant to help identification.
  5. Do not give home remedies, oils or try to make the alpaca vomit unless your vet tells you to.
  6. Keep the animal quiet, in shade or shelter, with water available. Write down the time and every symptom you see.
  7. Check every other alpaca that had access, then remove the plant permanently (including roots).

Emergency: call your veterinarian immediately. If you cannot reach them, contact an animal poison control service (in the U.S., the ASPCA Animal Poison Control Center or Pet Poison Helpline; fees may apply). Bring a sample or photo of the plant.

About the plant

Hydrangea is a genus of more than 70 species of flowering plants native to Asia and the Americas. Hydrangea is also used as the common name for the genus; some are also often called hortensia. The genus was first described from Virginia in North America, but by far the greatest species diversity is in eastern Asia, notably China, Korea, and Japan. Most are shrubs 1–3 m tall, but some are small trees, and others lianas reaching up to 30 m (100 ft) by climbing up trees. They can be either deciduous or evergreen, though the widely cultivated temperate species are all deciduous.From Wikipedia — “Hydrangea”, licensed under CC BY-SA 4.0.

Where it grows

GBIF, the Global Biodiversity Information Facility, holds 140,677 recorded observations of Hydrangea Gronov. ex L. worldwide, including 30,720 in the United States. It belongs to the Hydrangeaceae family. See the occurrence map on GBIF.

Frequently asked questions

Is hydrangea poisonous to alpacas?
Yes. Yes — hydrangea is toxic to alpacas. A common garden shrub. Keep it outside fences.
What part of hydrangea is toxic to alpacas?
Leaves and buds.
What are the symptoms of hydrangea poisoning?
Drooling, loss of appetite, diarrhea, colic or abdominal discomfort and rapid breathing in large amounts.
Is dried hydrangea safe?
Drying does not reliably make poisonous plants safe. Treat dried leaves and contaminated hay with the same caution.

Keeping pastures safe

  • Walk every paddock and fence line each season and remove toxic plants, including roots.
  • Never throw garden, hedge or lawn clippings over the fence.
  • Check pastures after storms for fallen branches (cherry, red maple).
  • Buy hay from known sources and inspect it for weeds.
  • Keep pastures well managed — hungry alpacas eat plants they would normally avoid.

Browse the full toxic plant checker, the printable list of poisonous plants and the list of safe plants.

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.

Data: plant status compiled from veterinary toxicology references (see sources); taxonomy and occurrences from GBIF; identifiers from Wikidata Q155997.