Mad honey, also known as hallucinogenic honey, is a rare and intriguing substance produced by bees that forage on nectar from rhododendron flowers. These flowers contain grayanotoxins, compounds that can induce psychoactive Rhododendron carolinianum pink purple (Carolina Rhododendron) 30000 Seeds Rhododendron : culture et floraison History of USDA Plant Hardiness Zone Maps The Rest of the Story