Common grape hyacinth Toxic?

Updated 2026-03-06| 4 min read| 2,893 found this helpful

No documented toxicity to humans, cats, dogs, or horses is found in available scientific literature for this species.

Despite low risk, common grape hyacinth is not appropriate for use as feed for any companion animals or livestock.

This species is easily confused with several toxic or weakly toxic related plants, so accurate identification is critical before ingestion.

FAQ

Is Common grape hyacinth toxic to Humans?

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a doctor if unusual symptoms occur. (Non-toxic)

Is Common grape hyacinth toxic to Cats?

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur. (Non-toxic)

Is Common grape hyacinth toxic to Dogs?

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur. (Non-toxic)

Is Common grape hyacinth toxic to Horses?

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur. (Non-toxic)

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Toxicity Details

Humans

Non-toxic

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a doctor if unusual symptoms occur.

Cats

Non-toxic

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur.

Dogs

Non-toxic

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur.

Horses

Non-toxic

No reported symptoms in available research; adverse effects are not expected with small accidental ingestion, consult a vet if unusual symptoms occur.

Toxicity Snapshot

Toxic PartsNo toxic parts identified in published research; the entire plant is considered likely non-toxic, though not recommended for consumption as fodder.

Exposure RouteIngestion is the only potential exposure route; dermal contact is not associated with adverse effects.

Toxic CompoundsNo toxic compounds identified in available research for this species

First Aid & Prevention

First 30 Minutes

• If ingested, rinse the mouth of the exposed human/animal with clean water immediately.
• Remove all remaining plant material from areas accessible to children, pets, or livestock.
• Monitor for unusual gastrointestinal discomfort for 2 to 4 hours post-ingestion.

Contact Vet Immediately

• If your pet ingests large quantities of the plant and develops persistent vomiting, diarrhea, or lethargy.
• If you cannot confirm the plant is definitely common grape hyacinth (risk of exposure to toxic lookalikes).
• If a horse or other livestock ingests large amounts of the plant as fodder.

Prevention

• Accurately identify all plants in areas accessible to children, pets, and livestock to avoid confusion with toxic lookalikes.
• Do not intentionally feed common grape hyacinth to any companion animal or livestock.
• Store plant cuttings or bulbs out of reach of curious animals and young children.

Treatment & Prognosis

• No specific treatment is required for small accidental ingestion.
• Provide supportive care (fluid therapy, anti-emetics) if mild gastrointestinal symptoms occur after large ingestion.
• Confirm plant identification to rule out exposure to more toxic related species before proceeding with treatment.

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Professional Toxicology

Scientific NameMuscari botryoides (L.) Mill.

AliasesHyacinthus botryoides L.、Small grape hyacinth、Light blue musk hyacinth、Small muscari、Blue muscari

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

No organs are known to be adversely affected by ingestion of this species

Mechanism of Action

• No toxic mechanism has been identified for this species, as no toxic properties have been documented

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Livestock (cattle, sheep, goats): No confirmed toxicity reported, but ingestion of large quantities as fodder is not recommended.

Small mammals (rabbits, guinea pigs): No adverse effects reported with small accidental ingestion; intentional feeding is not advised.

Confusion Risk

The following plants look similar and may be confused:

Other Muscari species Muscari spp.

Visually similar to common grape hyacinth; unconfirmed reports note mild toxicity in some Muscari varieties.

Chives Allium schoenoprasum

Foliage resembles common grape hyacinth leaves; chives are weakly toxic to cats and dogs.

Common bluebell Hyacinthoides non-scripta

Has similar bell-shaped purple flowers; common bluebells are moderately toxic to humans and animals.

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Related Toxic Plants

Lily of the valley

Convallaria majalis

Severe toxicity: contains cardiac glycosides that can cause fatal heart arrhythmias in humans and animals.

Asparagus fern

Asparagus setaceus

Low to moderate toxicity: causes allergic skin reactions and gastrointestinal upset if ingested.

Adam's needle yucca

Yucca filamentosa

Low to moderate toxicity: contains saponins that cause gastrointestinal irritation in dogs, cats, and horses.

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Data Sources

1. CliniTox (Universität Zürich)

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