How much cannabis can I possess in Michigan with an MMJ Card?

In Michigan, you can possess up to 2.5 ounces of cannabis with a valid medical marijuana card. Patients or their caregivers can grow up to 12 cannabis plants.

Recreational users can possess up to 2.5 ounces of cannabis, but no more than 15 grams of concentrate, on their person and 10 ounces at home. Adults 21 and older can also grow up to 12 plants for personal use.