Yes, Laurel is toxic to dogs!
Dogs accidentally consuming the Laurel 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).
Laurel consumption is also toxic to Cats and Horses.
Toxic Principles Of Laurel: Grayanotoxins.
More Info About The Laurel Plant
Scientific Name: Kalmia latifolia
Family: Ericaceae.
Also known as: Mountain laurel, Spoonwood, Mountain Ivy, Calico Bush, Ivy Bush.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.