Identify poisonous plants and pasture risks for Kunekune pigs, with practical tips for safer fencing, grazing, and yard checks.

Kunekunes are curious, opportunistic eaters, so pasture and landscaping should be checked for toxic plants. Toxicity depends on the plant, amount eaten, growth stage, whether the plant is fresh or dried, and the pig's condition. This is not an exhaustive list.

Plants With Documented Swine or Livestock Risk

A Kunekune stands safely behind woven-wire fencing while dense unfamiliar vegetation grows outside the pig pasture.
  • Cocklebur: young seedlings are particularly dangerous; pigs are among the livestock species specifically reported to be affected. [1] [2]
  • Wild cherry and chokecherry (Prunus species): leaves and seeds can contain cyanogenic compounds; Cornell lists swine among susceptible species. [2]
  • Yew (Taxus species): highly toxic ornamental material; fresh or dried clippings can be dangerous, including to pigs. [2] [3]
  • Rhubarb leaves: Cornell lists swine among affected species. Keep leaves and garden waste away from pig areas. [2]
  • Pokeweed and bracken fern: both are listed as poisonous plants that can affect swine. [2]
  • Pigweed and lambsquarters under nitrate-accumulating conditions: drought and heavy nitrogen fertility can increase nitrate risk in susceptible plants. [1] [2]

Pasture Conditions Change Risk

A Kunekune in drought-stressed pasture where sparse forage makes taller weeds more prominent.

Poisoning risk often rises when forage is short, animals are moved to unfamiliar pasture, drought limits normal feed, or hungry animals are released into an area containing weeds they would normally avoid. [1]

Do Not Depend on a Generic Internet Plant List

A farmer photographs an unfamiliar plant outside the pig fence while a Kunekune remains safely separated in the background.

Plant names vary regionally, and look-alike species are common. If you are unsure of a plant, identify it through a local Extension office, veterinarian, toxicology resource, or qualified plant expert before allowing pigs access.

If You Suspect Plant Poisoning

A veterinarian examines a Kunekune in a clean pen while the owner preserves a plant sample and reference photographs.

Remove the pigs from the suspected source without exposing yourself to the plant, keep a sample or clear photographs if it can be done safely, and contact a veterinarian or animal poison resource immediately. Do not wait for a web search to tell you whether the dose was dangerous.

BF Farm's Practical Rule

A caretaker removes branches and yard clippings away from the pig fence while Kunekunes remain inside a clean paddock.

We remove known toxic plants and dangerous clippings from pig areas, avoid dumping ornamental trimmings into pastures, and pay extra attention after storms, drought, pasture changes, or landscaping work.

Sources & References

  1. University of Minnesota Extension: Plants Poisonous to Livestock
  2. Cornell University Animal Science: Plants Poisonous to Livestock Database
  3. Cornell University Animal Science: Yew Toxicology

About the Author

Pasture experience makes Mark Bengtson pay close attention to what pigs can reach as well as what was intentionally planted for them. Plant-toxicity claims on this page are not based on farm anecdotes; they remain tied to the cited toxicology and Extension sources.

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