Missouri Medical Marijuana Dispensaries Go back to directory. Grassroots OpCo MO, LLC Grassroots OpCo MO, LLC Contact: Steven Weisman 490 SW MO-7 Hwy Blue Springs MO 64015 work Work Phone: (872) 302-0289work Work Email: sweisman@grassrootscannabis.comINTERNET Categories: Missouri Medical Marijuana Dispensaries Updated 10 months ago.