With a medical marijuana card, you gain access to higher purchasing limits than recreational users. A medical patient with a MMJ card can purchase 8 ounces of cannabis in flower form, 6 mature or 12 immature marijuana plants.
This means you can legally obtain and possess more cannabis products to suit your personal needs and preferences.
Here is a short article about the benefits of a Medical Marijuana Card.
https://www.onlinemedicalcard.com/cloud-legends-420/
