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