Grow Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn This is a vid explaning the 420 marijuana grow room a lil better. Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Articles You May Like New calls for marijuana legalization after report shows Wisconsinites gave Illinois $36M in revenue New Louisiana marijuana laws in effect Aug. 1 Researching the Health Effects of Marijuana How to bake weed cookies Legalize All Drugs. NOW.