Wandering Jew Toxic?

Updated 2026-03-06| 5 min read| 3,751 found this helpful
Wandering Jew
1

All parts of the plant are toxic, containing irritant calcium oxalate crystals and high nitrate levels

2

Exposure causes contact dermatitis in dogs, and ingestion may lead to systemic symptoms including circulatory collapse

3

Birds face extremely severe toxicity risk, while grazing cattle can die of nitrate poisoning within 1-2 hours of ingestion

FAQ

Is Wandering Jew toxic to Humans?

No specific human toxicity data documented, but dermal contact may potentially cause mild skin irritation similar to reactions seen in animals (Low)

Is Wandering Jew toxic to Cats?

No specific toxicity data available for cats, monitor for signs of irritation or illness if exposure occurs (Unknown)

Is Wandering Jew toxic to Dogs?

Contact with plant sap causes cell-mediated contact dermatitis with vesico-pustular skin/mucous membrane lesions, itching, redness, swelling, exudation; possible additional symptoms include acute circulatory collapse, vomiting, abdominal pain and lethargy (Moderate)

Is Wandering Jew toxic to Horses?

No specific toxicity data available for horses, monitor for signs of irritation or illness if exposure occurs (Unknown)

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Toxicity Details

Humans
Low

No specific human toxicity data documented, but dermal contact may potentially cause mild skin irritation similar to reactions seen in animals

Cats
Unknown

No specific toxicity data available for cats, monitor for signs of irritation or illness if exposure occurs

Dogs
Moderate

Contact with plant sap causes cell-mediated contact dermatitis with vesico-pustular skin/mucous membrane lesions, itching, redness, swelling, exudation; possible additional symptoms include acute circulatory collapse, vomiting, abdominal pain and lethargy

Horses
Unknown

No specific toxicity data available for horses, monitor for signs of irritation or illness if exposure occurs

Toxicity Snapshot

Toxic PartsEntire plant
Exposure RouteDermal contact with plant sap, ingestion of plant material
Toxic CompoundsDicarboxylic acids; Calcium oxalate crystals (needle-shaped raphides); Nitrate compounds

First Aid & Prevention

First 30 Minutes

  • • If dermal contact occurs, immediately wash the affected area with mild soap and cool running water to remove residual plant sap
  • • If ingested, rinse the mouth thoroughly with clean water, do not induce vomiting unless instructed by a vet/medical professional
  • • Monitor for symptom onset, which can appear as early as 1-2 hours post ingestion for grazing animals

Contact Vet Immediately

  • • If signs of dermatitis (redness, swelling, blisters, itching, exudation) appear after contact
  • • If ingestion is confirmed, especially if symptoms like vomiting, lethargy, abdominal pain or unusual circulatory changes occur
  • • If the exposed animal is a bird, as this species faces extremely severe, potentially fatal toxicity risk

Prevention

  • • Avoid direct contact with the plant, wear protective gloves when handling if necessary
  • • Keep the plant out of reach of pets, livestock and wild birds
  • • Do not allow grazing animals to feed on pastures where this plant is present

Treatment & Prognosis

  • • Provide symptomatic supportive care matching observed symptoms
  • • For methaemoglobinaemia caused by nitrate poisoning in cattle, administer 1% methylene blue solution slowly intravenously at 9mg/kg, repeat after 30 minutes if required
  • • Administer vitamin C: initial 20mg/kg intravenously, followed by 30mg/kg orally 3 times per day
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Professional Toxicology

Scientific NameTradescantia fluminensis Vell.; Tradescantia albiflora Kunth
AliasesSpeedy Henry、Variegated wandering Jew、Spiderwort、Wandering sailor
Toxicity Grade
HumansLow
CatsUnknown
DogsModerate
HorsesUnknown
Target Organs
SkinMucous membranesCirculatory systemGastrointestinal tract
Mechanism of Action

• Needle-shaped calcium oxalate raphides irritate skin and mucous membranes on contact or ingestion

• High nitrate content leads to nitrate poisoning and methaemoglobinaemia when ingested, causing circulatory failure in severe cases

• Plant sap triggers a cell-mediated immune response leading to contact dermatitis lesions

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Birds: Severe (very highly toxic), ingestion may lead to rapid death
Cattle (heifers, cows): Highly toxic, ingestion causes acute nitrate poisoning leading to death within 1-2 hours of consumption
Confusion Risk

The following plants look similar and may be confused:

Other Tradescantia species Tradescantia spp.
Same genus, very similar leaf shape and trailing growth habit, most also contain calcium oxalate crystals with comparable toxicity profiles
Callisia species Callisia spp.
Same Commelinaceae family, similar growth form, often sold as related houseplants and visually hard to distinguish
Commelina species Commelina spp.
Same Commelinaceae family, similar leaf and flower structure, commonly grows in the same wild habitats as Tradescantia fluminensis
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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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