Yes, Caraway is toxic to dogs!
Dogs accidentally consuming the Caraway plants can show the following clinical symptoms: Vomiting, Prolonged Depression, Incoordination, Hypersalivaton, Sleepiness Or Excitation, Dilated Pupils, Low Body Temperature, Low Blood Pressure, Coma, Seizure And Death (In Rare Cases).
Caraway consumption is also toxic to Cats and Horses.
Toxic Principles Of Caraway: oils, carvone and limonene.
More Info About The Caraway Plant
Scientific Name: Carum carvi
Family: Umbelliferae.
Also known as: Meridian Fennel, Persian Cumin.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.