Yes, Hahn’s Self Branching English Ivy is toxic to dogs!
Dogs accidentally consuming the Hahn’s Self Branching English Ivy 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).
Hahn’s Self Branching English Ivy consumption is also toxic to Cats and Horses.
Toxic Principles Of Hahn’s Self Branching English Ivy: Triterpenoid saponins (hederagenin).
More Info About The Hahn’s Self Branching English Ivy Plant
Scientific Name: Hedera helix
Family: Araliaceae.
Also known as: Branching Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, California Ivy, English Ivy.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.