Various strains of medical marijuana available for recreational use on display at Virgil Grant's dispensary in Los Angeles, California on February 8, 2018.
Virgil Grant is riding the high on California's cannabis legalization, with a burgeoning empire that already comprises three dispensaries, two plantations and a line of apparel. His success has come as some compensation for the six years lost inside the federal prison system for dealing the drug. / AFP PHOTO / Frederic J. BROWN / TO GO WITH AFP STORY by Veronique DUPONTFREDERIC J. BROWN/AFP/Getty Images