Canna Toxic?

Updated 2026-03-06| 5 min read| 3,389 found this helpful

Canna indica is officially classified as non-toxic to cats, dogs, and horses per available toxicology datasets

No adverse toxic reactions are expected from accidental ingestion of small to moderate amounts of Canna plant material

Any symptoms after exposure are likely due to individual sensitivity or plant misidentification, not inherent Canna toxicity

FAQ

Is Canna toxic to Humans?

No expected toxic symptoms from standard exposure; mild temporary gastrointestinal discomfort may occur in sensitive people after ingesting very large quantities (Non-toxic)

Is Canna toxic to Cats?

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion (Non-toxic)

Is Canna toxic to Dogs?

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion (Non-toxic)

Is Canna toxic to Horses?

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion (Non-toxic)

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Toxicity Details

Humans

Non-toxic

No expected toxic symptoms from standard exposure; mild temporary gastrointestinal discomfort may occur in sensitive people after ingesting very large quantities

Cats

Non-toxic

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion

Dogs

Non-toxic

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion

Horses

Non-toxic

No known toxic symptoms; rare mild digestive upset may occur with excessive ingestion

Toxicity Snapshot

Toxic PartsNo inherently toxic plant parts have been identified; all foliage, flowers, and roots are considered non-toxic for common domestic species

Exposure RoutePrimary exposure routes are accidental ingestion and skin contact; neither is associated with toxic effects for most individuals

Toxic CompoundsResistant starch, dietary fiber, carotenoid pigments, and flavonoids; no confirmed toxic phytochemicals are present in standard edible Canna indica cultivars

First Aid & Prevention

First 30 Minutes

• If a child or pet ingests large amounts of Canna, rinse their mouth thoroughly with clean water
• Monitor for any unusual signs of discomfort for 2 to 4 hours post-exposure
• Retain a sample of the ingested plant for confirmation of identification if symptoms develop

Contact Vet Immediately

• If your pet displays persistent vomiting, diarrhea, or lethargy lasting longer than 6 hours after ingestion
• If your pet has a documented history of severe plant allergies or food sensitivities
• If you cannot confirm the ingested plant is correctly identified as non-toxic Canna indica

Prevention

• Keep potted Canna plants out of reach of very young pets or toddlers that may chew excessive amounts of plant material
• Confirm full plant identification before allowing pets or livestock to graze near Canna plantings
• Store harvested Canna root crops away from unsupervised animal access to prevent overconsumption

Treatment & Prognosis

• Provide supportive care for mild digestive upset if it occurs, including access to fresh water and small, bland meals
• No specific antidote is required as the plant has no inherent toxic properties
• Treat any rare allergic reactions per standard medical or veterinary guidance as needed

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Professional Toxicology

Scientific NameCanna indica

AliasesAchira、Indian shot、African arrow root、Edible canna、Purple arrow root、Sierra Leone arrow root

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

No bodily organs are targeted by toxic compounds from this plant

Mechanism of Action

• No toxic mechanism has been identified; Canna indica does not produce phytochemicals that trigger adverse toxic effects in humans or common domestic animals

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Classified as non-toxic; Canna foliage is sometimes used as a supplementary forage crop in tropical regions with no reported adverse effects

Sheep and goats: Non-toxic; no documented toxic reactions to ingestion of Canna plant material at any quantity

Domestic rabbits: Non-toxic in small, regular portions; excessive ingestion may cause mild digestive bloating in sensitive individuals

Confusion Risk

The following plants look similar and may be confused:

Ornamental hybrid canna Canna × generalis

Visually nearly identical to Canna indica due to shared foliage and flower morphology; most ornamental hybrids are also non-toxic, but some have higher pigment concentrations that may cause mild digestive upset in very large doses

West Indian arrowroot Maranta arundinacea

Frequently confused with Canna indica due to the shared common name 'arrowroot' and similar starchy edible root structure; it is also non-toxic but has different culinary uses and growing requirements

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Related Toxic Plants

Bird of paradise

Strelitzia reginae

Moderate toxicity (causes oral irritation, vomiting, and diarrhea in cats, dogs, and horses)

Kahili ginger lily

Hedychium gardnerianum

Low to moderate toxicity (triggers mild digestive upset and allergic reactions in sensitive pets)

Shell ginger

Alpinia zerumbet

Low toxicity (causes temporary vomiting and diarrhea in dogs and cats when ingested in large quantities)

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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.