Devon Medical Cannabis Dispensary Keystone's Devon medical marijuana dispensary opened in February of 2018 and offers a wide variety of medical cannabis products, including vapes, extracts, flower, tinctures, capsules, lotions, RSO and other medical marijuana products. Our dispensary is located off Lancaster Ave, across the street from Fred Beans Volkswagen of Devon about 15 miles outside of Philadelphia. The area of Devon is known for its oldest and famous horse competitions, the Jenkins Arboretum, and plenty of art, parks and cafes easily accessible by a short drive. Our Mission As one of the original dispensaries awarded a license by the state of Pennsylvania, Keystone Shops provides naturally therapeutic means of treatment. We believe in and pioneer the potential of cannabis. For patients of all ages, we are here to help you through your journey toward better health, wellness, and quality of life. We are your all-in-one solution. Keystone Shops is now part of the Trulieve Family. As a team, we will continue to remain entirely patient-focused, with your health and recovery as our priority. Our core values and philosophies have us work side by side with the members of our communities to provide resources through advocacy, events, and education and support diversity, equity, and inclusion through sponsorships, events and partnerships, and programs. Come in and learn more about Trulieve. Each dispensary offers ample parking, including ADA compliant, handicapped parking spaces. Due to federal regulations, Keystone Shops may not accept credit cards. For your convenience, we may accept ATM cards.