Poppy seeds are a powerhouse of pain relief properties which has a calming effect that may gently induce a relaxing sleep. Either wait until the flower heads are completely dried or pick them and hang Transforming Opium Poppies Into Heroin FRONTLINE PBS U.S. Customs finds opium pods headed for Dover at Port of Wilmington Can you get high from poppy seeds? Live Science Opium poppy Kew Philadelphia CBP officers seize nearly 300 pounds of dried opium poppy pods from Spain U.S. Customs and Border Protection