Are arborvitae leaves poisonous?

Arborvitae leaves, specifically those of the Oriental arborvitae variety, contain a toxic compound called thujone. Thujone is a naturally occurring chemical compound found in various plants, including certain types of arborvitae. While arborvitae is commonly used in gardens and landscaping due to its attractive appearance and evergreen foliage, it is important to be aware of the potential toxicity associated with this plant.

Thujone is known to have various adverse effects on the human body, especially when consumed in large quantities or over an extended period. Some of the symptoms that can occur as a result of thujone poisoning include restlessness, mental changes, vomiting, dizziness, tremors, kidney damage, seizures, and other side effects. It is worth noting that the severity of these symptoms may vary depending on the amount of thujone ingested and individual sensitivity.

As a gardening and landscaping expert, it is crucial to inform people about the potential risks associated with arborvitae leaves and thujone. While the danger primarily arises from ingesting the leaves, caution should also be exercised when handling the plant, as contact with the skin may cause irritation or allergic reactions in some individuals.

To ensure the safety of humans and pets, it is advisable to avoid ingesting or allowing direct contact with arborvitae leaves. This is particularly important for households with small children and animals who may be more susceptible to the toxic effects of thujone. If you have arborvitae plants in your garden, it is recommended to keep an eye on children and pets to prevent them from chewing or ingesting any part of the plant.

In case of accidental ingestion or exposure to arborvitae leaves, it is essential to seek medical advice immediately. Medical professionals can provide appropriate guidance and treatment based on the individual circumstances and symptoms presented.

While arborvitae is a popular choice for gardens and landscaping due to its aesthetic appeal, it is crucial to be aware of the potential toxicity associated with the leaves, especially in the case of Oriental arborvitae. Thujone, the toxic compound present in these leaves, can cause various harmful effects on the human body. Taking necessary precautions, such as avoiding ingestion and direct contact with the leaves, can help ensure the safety of individuals and pets.

Photo of author

Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.