Frequently asked questions Is Recreational Marijuana Legal in Arizona? On November 3, 2020, voters approved Proposition 207 in Arizona, meaning that people aged 21 or over can possess and grow marijuana for recreational purposes. The proposition becomes official when the election results are canvassed Nov. 30. Adults can grow six plants at home, and no more than 12 plants in a house with more than one adult. Dispensary operators are hoping to be able to offer recreational sales by April 20, 2021. There are around about 120 dispensaries operating today in Arizona, and these should be able to provide recreational cannabis by next year. Starting July 12, people who were arrested, charged with, adjudicated or convicted, or sentenced for possessing two and a half ounces or less of marijuana, not more than 12.5 grams of concentrate, or having six marijuana plants, or marijuana paraphernalia, can petition to have the record expunged. Residents of Arizona 21 and older may posses up to 1 ounce of usable marijuana or 5 grams of concentrate. There are fewer workplace protections for recreational cannabis users, so employers may still refuse you employment based on cannabis use.