Devil’s Helmet
This is probably one of the most poisonous plants you’ll find in your backyard. Recently, a gardener died from brushing up against the devil’s helmet plant. He suffered from multiple organ failures and died while in the hospital. It has a variety of names, including the Queen of Poisons and Monkshood. The roots are the most poisonous part of the plant, and if ingested, it causes heart failure. Within the first few hours of eating the plant’s roots, most fatalities occur. To prevent accidental ingestion or fatality, always wear gloves and long pants and shirts while gardening (Best Life Online).