Hardy kiwifruit Toxic?

Updated 2026-03-06| 3 min read| 1,102 found this helpful
Hardy kiwifruit
1

Only fully ripe hardy kiwifruit are safe for consumption; all other plant parts are toxic

2

The plant is extremely toxic to birds, while risk for humans and other mammals is low unless large quantities are ingested

3

Exposure to plant sap can cause eye injuries, and large ingested doses may lead to kidney damage and heart rhythm abnormalities

FAQ

Is Hardy kiwifruit toxic to Humans?

After contact: Mucous membrane swelling, edema, blisters, excessive salivation. After ingestion: Difficulty swallowing, vomiting, abdominal pain, diarrhea. After large dose intake: Heart arrhythmia, muscle spasms, tetany, convulsions, polyuria followed by anuria from kidney damage, eye lesions (pain, redness, vision changes) if sap contacts eyes (Low)

Is Hardy kiwifruit toxic to Cats?

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort (Unknown)

Is Hardy kiwifruit toxic to Dogs?

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort (Unknown)

Is Hardy kiwifruit toxic to Horses?

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort (Unknown)

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Toxicity Details

Humans
Low

After contact: Mucous membrane swelling, edema, blisters, excessive salivation. After ingestion: Difficulty swallowing, vomiting, abdominal pain, diarrhea. After large dose intake: Heart arrhythmia, muscle spasms, tetany, convulsions, polyuria followed by anuria from kidney damage, eye lesions (pain, redness, vision changes) if sap contacts eyes

Cats
Unknown

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort

Dogs
Unknown

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort

Horses
Unknown

No species-specific symptom data available; expected symptoms of large ingestion include oral irritation, vomiting, diarrhea, and abdominal discomfort

Toxicity Snapshot

Toxic PartsAll parts of the plant, with the exception of fully ripe fruit
Exposure RouteOral ingestion of unripe fruit or non-fruit plant parts, direct mucous membrane/skin contact, eye contact with plant sap
Toxic CompoundsOxalic acid; Oxalates; Oxalate raphides; Serotonin

First Aid & Prevention

First 30 Minutes

  • • Rinse affected areas thoroughly with cool running water for 10-15 minutes if skin/mucous membrane contact occurs
  • • Flush eyes with clean lukewarm water for at least 15 minutes (keep eyelids open) if exposed to plant sap
  • • Rinse mouth thoroughly and offer small sips of water if small amounts of toxic plant material are ingested
  • • Do not induce vomiting unless explicitly instructed by a medical or veterinary professional

Contact Vet Immediately

  • • Ingestion of large quantities of toxic plant parts
  • • Presence of severe symptoms: difficulty breathing, abnormal heart rhythm, seizures, reduced or no urine output, severe eye pain/vision changes
  • • Persistent vomiting, diarrhea, or abdominal pain lasting more than 2 hours
  • • Exposure in birds, as this species is extremely susceptible to poisoning from this plant

Prevention

  • • Only consume fully ripe hardy kiwifruit, discard all unripe fruit and non-fruit plant parts
  • • Keep the plant out of reach of children, pet birds, and other companion animals
  • • Wear protective gloves when handling non-fruit parts of the plant to avoid irritation
  • • Wash hands thoroughly after touching any part of the plant except fully ripe fruit

Treatment & Prognosis

  • • Administer decontamination and symptomatic supportive care appropriate for the exposure route
  • • Provide mucosal protectants, analgesics, and glucocorticoids for severe swelling as directed by a healthcare provider
  • • Administer calcium supplementation if very large quantities of the plant were ingested
  • • Provide targeted supportive care for kidney injury, cardiac arrhythmia, or seizures if these complications develop
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Professional Toxicology

Scientific NameActinidia arguta (Sieb. & Zucc.) Planch. ex Miq.
AliasesKiwi berry、Arctic kiwi、Baby kiwi、Dessert kiwi、Grape kiwi、Northern kiwi、Cocktail kiwi、Kiwibeere、Honigbeere、Kleinfruchtige Kiwi、Kiwaï、Kiwi de Sibérie、Kiwi d'été
Toxicity Grade
HumansLow
CatsUnknown
DogsUnknown
HorsesUnknown
Target Organs
Mucous membranesSkinEyesGastrointestinal tractKidneysHeartNervous system
Mechanism of Action

• Oxalate raphides cause physical irritation to mucous membranes, skin, and eyes on direct contact

• High doses of oxalates form crystals in renal tubules, leading to acute tubular necrosis and kidney failure

• Excess serotonin from ingestion of very large quantities of plant material disrupts cardiac and neurological function

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Birds: Extremely severe toxicity; ingestion of even small amounts of plant material can cause fatal poisoning
Confusion Risk

The following plants look similar and may be confused:

Other kiwifruit species Actinidia spp.
Other Actinidia species are visually similar to hardy kiwifruit, and many have higher concentrations of toxic oxalates and other compounds, making them more hazardous if ingested
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Related Toxic Plants

Common kiwifruit
Common kiwifruit
Actinidia deliciosa
Low toxicity (all parts except fully ripe fruit are toxic)
Silver vine
Actinidia polygama
Low toxicity for most mammals; may cause mild behavioral changes in cats
Chinese kiwifruit
Chinese kiwifruit
Actinidia chinensis
Low toxicity (toxicity limited to unripe fruit and non-fruit plant parts)

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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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