But the capital of western state North Rhine-Westphalia - Düsseldorf - is planning a pilot project to sell recreational cannabis to adults, and said it hoped to get permission to launch this in the summer of 2017.
When Green party members in 2015 presented legislation to allow adults to consume cannabis under strict conditions, they estimated a tax of €6-7 per gram of cannabis could bring in €1-2 billion per year to state coffers, based on average street prices of €10-12 per gram.
Patients should also anonymously submit data about their therapy for further research. The 2017 law put the Federal Institute for Drugs and Medical Devices (Bf Ar M) in charge of creating a 'cannabis agency' to regulate the cultivation, manufacture and sale at pharmacies of medical cannabis.
In many other states, the limit is between 3-5 grams. According to the 2011 World Drug Report, just 4.8 percent of people aged between 18 and 64 reported using marijuana at least once that year.
SEE ALSO: Why Germany just legalized medical marijuana 7. Before there was ever Harold and Kumar there was Stefan and Kai, the stars of the hilarious 2001 German stoner flick Lammbock about two friends who own a gourmet pizza delivery service as a front for selling marijuana.
The Hanfparade for cannabis legalisation in Berlin. The amount that an individual can possess without generally being prosecuted varies across the 16 states.
In capital city Berlin, the rules are much more liberal, with the possession limit being 15 grams in most cases. A Eurostat study for 2015 showed that more German young men smoke weed than young women with roughly 18 percent of men aged between 15 and 24 reporting using cannabis in 2012, compared to a little more than 10 percent of women in that age group.