Connecticut has a few unique laws regarding cannabis. In Connecticut, the state has decriminalized the possession of small amounts of marijuana. Connecticut’s law approving the sale of marijuana for medical purposes was on the books since 2012. While growing the plant is legal if your grow house fits pharmaceutical standards, users who want to purchase medical marijuana have to register with the state. The hardest part is for marijuana users looking to just purchase, you must buy from a licensed dispensary which is few and far between in Connecticut.