Haworthia Toxic?

Updated 2026-03-06| 5 min read| 3,090 found this helpful
Haworthia species
1

ASPCA classifies Haworthia as non-toxic to cats and dogs, with no identified toxic compounds

2

No confirmed data exists on Haworthia's toxicity to horses, so adverse effects remain unknown

3

Incidental small ingestion of Haworthia is not expected to cause severe harm to humans or common pets

FAQ

Is Haworthia toxic to Humans?

No documented toxic effects; mild temporary gastrointestinal upset may occur only if very large quantities are ingested (Non-toxic)

Is Haworthia toxic to Cats?

No known toxic effects; rare mild loose stools or drooling may occur as a non-toxic digestive reaction (Non-toxic)

Is Haworthia toxic to Dogs?

No known toxic effects; rare mild loose stools or drooling may occur as a non-toxic digestive reaction (Non-toxic)

Is Haworthia toxic to Horses?

No confirmed toxicity data available, potential effects are unstudied (Unknown)

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Toxicity Details

Humans
Non-toxic

No documented toxic effects; mild temporary gastrointestinal upset may occur only if very large quantities are ingested

Cats
Non-toxic

No known toxic effects; rare mild loose stools or drooling may occur as a non-toxic digestive reaction

Dogs
Non-toxic

No known toxic effects; rare mild loose stools or drooling may occur as a non-toxic digestive reaction

Horses
Unknown

No confirmed toxicity data available, potential effects are unstudied

Toxicity Snapshot

Toxic PartsNo identified toxic plant parts; all plant tissue is considered non-toxic to cats and dogs
Exposure RouteOral ingestion, skin contact; neither route is associated with confirmed toxic effects for cats and dogs
Toxic CompoundsNo documented toxic principles, per ASPCA toxicology data

First Aid & Prevention

First 30 Minutes

  • • Rinse the mouth of pets or children with clean water if plant residue is visible after ingestion
  • • Monitor for 1 to 2 hours for any rare mild digestive discomfort such as loose stools or drooling
  • • Document the estimated quantity ingested if a large amount is consumed for future reference

Contact Vet Immediately

  • • If your pet displays persistent vomiting, diarrhea, or lethargy after ingesting any plant material
  • • If you cannot positively confirm the ingested plant is Haworthia, as many lookalike species are toxic
  • • If a horse ingests large volumes of Haworthia, as toxicity for this species remains unconfirmed

Prevention

  • • Confirm the identity of all houseplants before placing them in areas accessible to pets or children
  • • Label plant collections clearly to avoid misidentification of Haworthia with toxic lookalike species
  • • Consult a toxicology guide or veterinarian before introducing new succulent plants to pet-accessible spaces

Treatment & Prognosis

  • • Provide supportive care only, including access to fresh drinking water, if mild digestive symptoms occur
  • • No specific antidote is required, as no toxic compounds have been identified in Haworthia
  • • Follow veterinarian guidance for symptomatic care if unusual or persistent symptoms develop after ingestion
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Professional Toxicology

Scientific NameHaworthia species
AliasesNumerous horticultural cultivars exist
Toxicity Grade
HumansNon-toxic
CatsNon-toxic
DogsNon-toxic
HorsesUnknown
Target Organs
No known target organs for toxicity
Mechanism of Action

• No identified toxic mechanism, as the plant contains no known harmful chemical compounds for cats or dogs

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Horse: Toxicity is unconfirmed; no official ASPCA or peer-reviewed data exists on adverse effects from ingestion
Small companion mammals (rabbits, guinea pigs, hamsters): No confirmed toxicity; mild temporary digestive upset may occur if large volumes of plant material are consumed
Confusion Risk

The following plants look similar and may be confused:

Aloe Vera Aloe vera
Visually similar due to rosette arrangement of fleshy pointed leaves; key difference: Aloe vera exudes bitter yellow sap when cut, while Haworthia does not. Aloe vera is toxic to cats and dogs.
Dwarf Snake Plant Sansevieria trifasciata 'Hahnii'
Dwarf varieties grow in low rosettes similar to many Haworthia species; key difference: snake plant leaves are stiffer, thicker, and have more pronounced grey-green horizontal banding. Snake plants are toxic to cats, dogs, and horses.
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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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