Meadow Saffron Toxic?

Updated 2026-03-06| 4 min read| 4,349 found this helpful
Meadow Saffron
1

All plant parts are toxic, with the highest toxin concentration in flowers and seeds; poisoning cases are most common in spring via ingestion of leaves and seeds.

2

It is severely toxic to cats, dogs, and horses, with a 25-50% fatality rate reported in affected animals, and toxins may be excreted in the milk of asymptomatic lactating exposed animals.

3

It is frequently misidentified as edible or lower-toxicity plants like wild garlic, significantly raising accidental poisoning risk for both humans and animals.

FAQ

Is Meadow Saffron toxic to Humans?

Not explicitly documented in source data, but expected to include oral irritation, bloody vomiting, diarrhea, multi-organ damage, bone marrow suppression, and potentially fatal outcomes. (Severe)

Is Meadow Saffron toxic to Cats?

Oral irritation, bloody vomiting, diarrhea, lethargy, shock, multi-organ damage, bone marrow suppression, paralysis, and potentially fatal respiratory failure in severe cases. (Severe)

Is Meadow Saffron toxic to Dogs?

Oral irritation, bloody vomiting, diarrhea, lethargy, shock, multi-organ damage, bone marrow suppression, paralysis, and potentially fatal respiratory failure in severe cases. (Severe)

Is Meadow Saffron toxic to Horses?

Colic, excessive salivation, apathy, unsteady gait, teeth grinding, vomiting, yellow-brown/green mucous or bloody diarrhea, increased urination, blood in urine, milk suppression in lactating mares, circulatory collapse, anuria, hypothermia, paralysis, and death from respiratory failure within 1-7 days in 25-50% of cases. (Severe)

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Toxicity Details

Humans
Severe

Not explicitly documented in source data, but expected to include oral irritation, bloody vomiting, diarrhea, multi-organ damage, bone marrow suppression, and potentially fatal outcomes.

Cats
Severe

Oral irritation, bloody vomiting, diarrhea, lethargy, shock, multi-organ damage, bone marrow suppression, paralysis, and potentially fatal respiratory failure in severe cases.

Dogs
Severe

Oral irritation, bloody vomiting, diarrhea, lethargy, shock, multi-organ damage, bone marrow suppression, paralysis, and potentially fatal respiratory failure in severe cases.

Horses
Severe

Colic, excessive salivation, apathy, unsteady gait, teeth grinding, vomiting, yellow-brown/green mucous or bloody diarrhea, increased urination, blood in urine, milk suppression in lactating mares, circulatory collapse, anuria, hypothermia, paralysis, and death from respiratory failure within 1-7 days in 25-50% of cases.

Toxicity Snapshot

Toxic PartsAll plant parts, with highest toxicity in flowers and seeds; springtime poisoning cases are most frequently linked to ingestion of leaves and seeds.
Exposure RouteIngestion is the primary exposure route; toxins may also be passed to nursing young via the milk of asymptomatic lactating animals that have ingested the plant.
Toxic CompoundsColchicine; Colchicoside; Demecolcin; Other tropolone alkaloids

First Aid & Prevention

First 30 Minutes

  • • Immediately remove any remaining plant material from the affected animal's mouth, and move all animals away from the plant source.
  • • Induce vomiting only if explicitly advised by a veterinarian, within 2 hours of ingestion, and if the animal is fully conscious.
  • • Collect a sample of the ingested plant to confirm identification and speed up targeted treatment.

Contact Vet Immediately

  • • Any confirmed or suspected ingestion of any part of meadow saffron, even if no symptoms are present, due to the 2-48 hour symptom latency period.
  • • Appearance of any post-exposure symptoms including oral irritation, vomiting, diarrhea, lethargy, or unsteady gait.
  • • Exposure of lactating animals to the plant, to avoid toxin transfer to nursing offspring.

Prevention

  • • Remove all meadow saffron plants from areas accessible to pets, livestock, and foraging humans.
  • • Educate foragers on key distinguishing features, such as the complete lack of garlic odor on its leaves, to avoid misidentification as wild garlic.
  • • Do not feed hay or forage known to be contaminated with meadow saffron to livestock, as its toxicity is not eliminated by drying.

Treatment & Prognosis

  • • Gastrointestinal decontamination (e.g. activated charcoal administration) as soon as possible post-ingestion.
  • • Symptomatic supportive care including fluid therapy, pain management, and continuous organ function monitoring.
  • • Respiratory support if paralysis or respiratory depression develops.
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Professional Toxicology

Scientific NameColchicum autumnale
AliasesAutumn Crocus
Toxicity Grade
HumansSevere
CatsSevere
DogsSevere
HorsesSevere
Target Organs
Oral cavityGastrointestinal tractKidneysLiverBone marrowCardiovascular systemRespiratory system
Mechanism of Action

• Colchicine and related tropolone alkaloids disrupt cellular division and function across all body tissues, leading to widespread organ damage.

• Toxins are not degraded by drying, cooking, or long-term storage, so contaminated forage, hay, or processed plant material remains fully toxic.

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Lower sensitivity to colchicine than horses and pigs; partial resistance to poisoning has been reported in this ruminant species.
Sheep: Lower sensitivity to colchicine than horses and pigs; partial resistance to poisoning has been reported in this ruminant species.
Pigs: Highly sensitive to meadow saffron poisoning, with similar vulnerability to horses.
Nursing young of any mammal species: At risk of secondary poisoning if they consume milk from an asymptomatic lactating animal that has ingested the plant.
Confusion Risk

The following plants look similar and may be confused:

Crocus Crocus sp.
Confusable with meadow saffron flowers. Key difference: Crocus sp. have low to moderate toxicity, while meadow saffron is severely toxic.
Wild Garlic Allium ursinum
Confusable with meadow saffron leaves. Key difference: wild garlic leaves have a distinct garlic odor when crushed, while meadow saffron leaves are odorless; wild garlic is non-toxic to humans.
Lily of the Valley Convallaria majalis
Confusable with meadow saffron leaves. Key difference: lily of the valley produces distinct small white bell-shaped flowers in spring, and is also highly toxic.
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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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