Is Charlock Toxic to Dogs and Cats? (2026)
Brassica kaber
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Quick facts
| Toxic to dogs | Yes |
|---|---|
| Toxic to cats | Yes |
| Toxic to horses | Yes |
| Toxic component | Glucosinolates (mustard oil compounds) |
| Onset of symptoms | Within a few hours |
| Indoor / outdoor | outdoor |
If your pet ate this plant
Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.
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Symptoms in dogs
- Vomiting
- Diarrhea
- Drooling
Symptoms in cats
- Vomiting
- Diarrhea
- Drooling
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What to do
Usually resolves with monitoring; a common agricultural weed rather than an ornamental, so exposure is mostly relevant for pets with pasture or farmland access.
Toxic component and mechanism
The toxic component in Charlock is glucosinolates (mustard oil compounds).
What makes this plant different
Charlock is a common agricultural field weed rather than an ornamental garden plant, meaning exposure is far more relevant for pets with access to farmland or pasture edges than for typical suburban or indoor pets.
Plant identification
- Scientific name
- Brassica kaber
- Family
- Cruciferae
- Also known as
- Charlock, Wild Mustard, California Rape
- Typically found
- outdoor
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Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control