Is the Laurel plant poisonous?
Also, are laurel leaves poisonous for humans?
Toxicity. All parts of the cherry laurel, including leaves, bark and stems, are toxic to humans. This plant produces hydrocyanic acid, or prussic acid, which can cause serious illness or death within hours of ingestion. Symptoms of cherry laurel poisoning include difficulty breathing, convulsions and staggering.
In this regard, is Laurel poisonous to other plants?
ALL parts (leaves, berries etc.) of all Laurels, apart from Bay Laurel, are poisonous to livestock and animals. We have had no reports of children or pets being affected by the foliage of these hedging plants; in our experience they hold no real attraction, however it is best to avoid planting next to livestock.
The Prunis laurocerasus (English or cherry laurel) is listed as a "1" (the most toxic) by the University of California "Safe and Poisonous Garden Plants" directory. All parts of these plants are toxic, although mountain laurel has been used in herbal medicine as an external treatment for skin diseases.