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 Rhododendronpark Schloss Heltorf Rhododendron calostrotum keleticum C2 r.20 30cm *K15w19 Future Gardens History of USDA Plant Hardiness Zone Maps The Rest of the Story Puncturevine (Tribulus terrestris) Tualatin Soil and Water Conservation District