In California, medical marijuana patients can possess up to 8 ounces or up to 60 grams of cannabis concentrate (1 oz. being equivalent to 8 grams) on their person.
Patients or their caregivers can grow up to 6 mature plants or 12 immature plants, or a larger amount consistent with the patient's reasonable needs, not exceeding 99 plants. To grow more than 6 mature or 12 immature plants, patients will need to get a grower's recommendation in addition to their Leafwell doctor's recommendation.
Recreational users can possess up to 28.5 grams of flower, 8 grams of concentrate, and 6 plants.