There are almost 400,000 known species of plants and one that’s commonly found in gardens could actually kill you if you’re not careful. An expert has warned that the cherry laurel, which is commonly used in garden hedges, is really poisonous if you make one crucial mistake – leave it in the car. Cherry laurel plant ‘could kill you’ Speaking on TikTok, Garden Designer and Exterior Styling Specialist Lee Beestall explained that the dense evergreen plant, which has glossy, vibrant green leaves, releases a toxic gas called cyanide when it is cut. It doesn’t pose much threat when it’s growing in y…