Calathea Toxic?

Updated 2026-03-06| 2 min read| 2,070 found this helpful

Calathea spp.

Calathea is confirmed non-toxic to cats, dogs, and horses per standard plant toxicology datasets.

Accidental ingestion of small amounts of Calathea material is not expected to cause adverse health effects in these species.

Unusual symptoms after exposure should be assessed by a professional to rule out other causes like allergies or unrelated illness.

FAQ

Is Calathea toxic to Humans?

No expected toxic effects; rare mild gastrointestinal upset or minor skin irritation may occur in highly sensitive individuals. (Non-toxic)

Is Calathea toxic to Cats?

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material. (Non-toxic)

Is Calathea toxic to Dogs?

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material. (Non-toxic)

Is Calathea toxic to Horses?

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material. (Non-toxic)

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Toxicity Details

Humans

Non-toxic

No expected toxic effects; rare mild gastrointestinal upset or minor skin irritation may occur in highly sensitive individuals.

Cats

Non-toxic

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material.

Dogs

Non-toxic

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material.

Horses

Non-toxic

No known toxic symptoms associated with casual contact or ingestion of normal amounts of Calathea plant material.

Toxicity Snapshot

Toxic PartsNo parts of the Calathea plant are confirmed to be toxic to cats, dogs, or horses.

Exposure RouteCommon exposure routes include accidental ingestion of leaves/stems and skin contact with plant sap.

Toxic CompoundsNo toxic bioactive compounds linked to adverse health effects in common companion or livestock animals have been identified in Calathea spp.

First Aid & Prevention

First 30 Minutes

• Rinse the mouth of any remaining plant material if ingestion occurred.
• Wash affected skin with mild soap and water if sap contact caused mild irritation.
• Monitor the exposed individual or pet for unusual symptoms for 2 to 4 hours post-exposure.

Contact Vet Immediately

• Persistent vomiting, diarrhea, or lethargy occurs in pets after ingestion of very large amounts of plant material.
• Signs of allergic reaction (hives, swelling, difficulty breathing) appear after exposure.
• Unusual symptoms persist for more than 6 hours after contact or ingestion.

Prevention

• Keep all houseplants out of reach of teething young pets to avoid overconsumption of plant matter that may cause non-toxic digestive upset.
• Wash hands after handling any houseplant to reduce risk of mild sap-related skin irritation.
• Identify all plants in your home and garden to avoid accidental exposure to truly toxic species.

Treatment & Prognosis

• Supportive care only, including access to fresh water and rest, if mild non-toxic digestive upset occurs.
• Antihistamines may be administered under medical or veterinary guidance if an allergic reaction is confirmed.
• No specific antidote is required, as no toxic effects are expected from Calathea exposure.

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Professional Toxicology

Scientific NameCalathea spp.

AliasesPrayer plant、Zebra plant、Peacock plant、Rattlesnake plant

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

No organs are known to be targeted by Calathea exposure, as the plant is non-toxic to tested species.

Mechanism of Action

• No toxic mechanism linked to Calathea spp. exposure has been identified in tested animal species.

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Rabbit: Non-toxic, small amounts of leaves are safe for consumption as part of a varied forage diet

Guinea Pig: Non-toxic, no known adverse effects from chewing or ingesting small amounts of plant material

Parrot: Non-toxic, no confirmed toxic effects from nibbling on Calathea leaves or stems

Confusion Risk

The following plants look similar and may be confused:

Triostar Stromanthe Stromanthe sanguinea 'Triostar'

Visually similar due to variegated foliage and membership in the Marantaceae family; key difference: Stromanthe has far more prominent bright pink and red variegation on leaf undersides than most common Calathea varieties.

Common Prayer Plant Maranta leuconeura

Often confused with Calathea as both are colloquially called 'prayer plants' that fold leaves at night; key difference: Maranta has smaller, more oval leaves with distinct raised vein patterning.

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Related Toxic Plants

Dumb Cane

Dieffenbachia spp.

Moderately toxic, causes severe oral irritation, swelling, and gastrointestinal upset

Peace Lily

Spathiphyllum wallisii

Moderately toxic, causes oral pain, vomiting, and difficulty swallowing in pets and humans

Heartleaf Philodendron

Philodendron hederaceum

Low to moderately toxic, causes oral irritation, drooling, and gastrointestinal upset in pets

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Data Sources

1. ASPCA Animal Poison Control

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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