Yellowrocket — (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman
Photo by (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas GoldmaniNaturalistCC BY-SA
cat safety reference

Is Yellowrocket safe for cats?

Barbarea vulgaris

Yellowrocket is a hardy, flowering biennial herb often found in fields and gardens. While it is considered non-toxic to pets, ingestion of large amounts of fibrous plant material may cause mild gastrointestinal upset.

Barbarea vulgarisBittercressHerb BarbaraWinter Cress
Light
Full sun to partial shade
Habit
Rosette-forming biennial
Care
Low

Safety status

Cats

Uncertain

Identity or evidence quality is not strong enough for a firm answer.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

What this means for your cat

Cats are not the species at risk from Yellowrocket. ASPCA lists Barbarea vulgaris as non-toxic to cats — the isothiocyanate toxicity it carries is a horse-and-livestock concern, not a feline one. A curious cat that mouths the bitter mustardy foliage is much more likely to spit it out than to swallow enough to matter.

Sources: ASPCA.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

Under review — original classification flagged as a likely labeler error pending curator verification.

Escalation note

Under review — original classification flagged as a likely labeler error pending curator verification.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Yellowrocket is listed as non-toxic to both cats and dogs.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Barbarea vulgaris is a biennial herb in the Brassicaceae family, commonly known as yellowrocket or winter cress.

Cats & dogs pagedogs page

Same cat verdict

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