Grow Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Adult-use marijuana has become a big business in the State of Michigan. And December proved to be a record month — with sales topping $135 million. Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Articles You May Like Alcohol & Marijuana explained by Doctor Hoeflinger | Part 1 #doctor #learning #shorts #alcohol Police bust black market grow site in Phoenix connected to operation in Northern California Marijuana legalization appears to be working in Colorado Nebraska officials file charges in medical marijuana petition fraud case Marijuana grow operation on fire in Los Angeles