Yes, Ornamental Pepper is toxic to dogs!
Dogs accidentally consuming the Ornamental Pepper 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).
Ornamental Pepper consumption is also toxic to Cats and Horses.
Toxic Principles Of Ornamental Pepper: Solanine.
More Info About The Ornamental Pepper Plant
Scientific Name: Solanum pseudocapsicum
Family: Solanaceae.
Also known as: Natal Cherry, Winter Cherry, Jerusalem Cherry.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.