While most of the flowers you find at a supermarket, grocery store, or florist won’t kill you if ingested, some commonly found flowering plants will. Daphne, Deadly Nightshade, Angel’s Trumpet, Azaleas, Oleander, Hemlock, and Wolf’s Bane are incredibly poisonous. Always research each flower you plan to consume and go to the hospital immediately if you’ve consumed any fatal flower’s petals, berries, roots, or leaves.