Yes, Arum Lily is toxic to dogs!
Dogs accidentally consuming the Arum Lily 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).
Arum Lily consumption is also toxic to Cats and Horses.
Toxic Principles Of Arum Lily: Insoluble calcium oxalates.
More Info About The Arum Lily Plant
Scientific Name: Zantedeschia aethiopica
Family: Araceae.
Also known as: Calla Lily, Pig Lily, White Arum, Trumpet Lily, Florist’s Calla, Garden Calla.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.
