Periwinkle, also known as Vinca, is a beautiful and popular plant that is commonly used in gardening and landscaping. However, it is important to be aware that not all varieties of Periwinkle are safe to touch. In fact, the Catharanthus roseus species, which is commonly known as Madagascar Periwinkle, is highly poisonous and can be harmful to humans and animals.
The toxicity of Periwinkle plants is primarily due to the presence of several alkaloids, such as vincristine and vinblastine, which are known to have toxic effects on the body. These alkaloids can cause a range of symptoms when ingested or even when in contact with the skin.
When it comes to touching Periwinkle plants, it is generally safe to handle the Vinca major and Vinca minor varieties, which are commonly referred to as Bigleaf Periwinkle and Common Periwinkle, respectively. These varieties have low toxicity levels and are unlikely to cause harm through skin contact. However, it is always a good idea to wash your hands thoroughly after handling any plant, especially if you have sensitive skin or are prone to allergies.
On the other hand, Catharanthus roseus, or Madagascar Periwinkle, is a highly poisonous variety that should be handled with caution. This plant contains a higher concentration of alkaloids and can cause more severe reactions if touched or ingested. It is advised to always wear gloves when handling this particular species and to avoid touching any open cuts or wounds while doing so.
It is worth noting that the toxicity of Periwinkle plants can vary depending on the individual and the extent of exposure. Some people may be more sensitive to the alkaloids present in these plants and may experience stronger reactions. It is always better to err on the side of caution and take necessary precautions when handling any potentially toxic plant.
To summarize, while some varieties of Periwinkle plants, such as Vinca major and Vinca minor, are generally safe to touch, it is important to exercise caution when dealing with the highly poisonous Catharanthus roseus species. Always wear gloves when handling this plant and wash your hands thoroughly afterwards. It is also advisable to keep Periwinkle plants out of reach of children and pets to prevent accidental ingestion.
