Cornflower

Also known as Bachelors Buttons, Bluebottle, Bachelor's Buttons, Bachelor's Button. One plant, one grade per pet — the verdicts below are transcribed from primary sources and human-reviewed.

FOR CATSS0 · SAFE

Cornflower (Centaurea cyanus) is non-toxic to cats (S0 Safe): the ASPCA lists this species as non-toxic, and Pet Poison Helpline says ingestion of large amounts may cause mild nausea with emesis.

FULL VERDICT →

Care at a glance

Lightdirect

Waterevery 2–3 days

Humiditymedium

Difficulty●●○

What happens if it's eaten

Signs on record for each animal, transcribed from the cited sources.

FOR CATSS0

Mild nausea with emesis after ingestion of large amounts (PPH) — Not specified by source

FOR DOGS

No dog record in the index yet.

When to call the vet

FOR CATS

See a vet if unusual or persistent symptoms follow ingestion.

FULL VERDICT →

FOR DOGS

No dog record in the index yet.

FAQ

Which plant does this Cornflower verdict cover?

Centaurea cyanus. The ASPCA's Bachelors Buttons, Bluebottle, and Cornflower entries and Pet Poison Helpline's Cornflower entry all give that scientific name. This verdict covers that species. Plants with other scientific names are not covered or graded here. Check the full scientific name on the tag.

Does this Cornflower verdict also cover Yellow Star Thistle or Russian Knapweed?

No. Pet Poison Helpline's Cornflower entry names "Centaurea cyanus" and says it is not to be confused with Yellow Star Thistle (Centaurea solstitialis) or Russian Knapweed (Rhaponicum (old genus: Centaurea) repens). Those plants are outside this page's verdict and are not graded here.