
Deadly nightshade, or belladonna nightshade, is an extremely toxic plant with a murky history. All parts of are poisonous, including the roots, leaves and especially the glossy black berries, which contain a mixture of alkaloids that can impact the central nervous system.
While it is true that deadly nightshade can be safely admired from a distance, this is not a plant to take lightly. If you have recently moved into a new property, swift action is best. Left unchecked, it can spread and become difficult - and dangerous - to manage.