Rhododendron flowers - properties
Rhododendrons, evergreen flowering plants that grow in temperate, mountainous areas around the world, contain chemicals called grayanotoxins.
Rhododendron flowers contain grayanotoxins, which make their way virtually unchanged through bees into their honey.
These neurotoxic compounds are cyclic diterpenes that exist in varying concentrations and varieties, depending on the particular rhododendron species and the time of year. Scientists have identified more than 25 types of grayanotoxins in rhododendrons. These chemicals make their way into the honey of bees that are feeding primarily on rhododendrons during the late spring, when so many of the plants are flowering that the bees can feast solely on rhododendron flowers without foraging elsewhere.