Cannabis greenhouse comprised of steel tubing In Ohio, marijuana is still a controlled substance, but its medicinal use is legal. This will not be a post about how to go about jumping through the hoops to get a grower's license, but will address a few of the issues of when you are actually preparing to grow cannabis in a greenhouse. Understand Your Climate You may find a greenhouse kit that says it works great for growing in Colorado, but if you are in Cleveland or Columbus or Cincinnati, you have to understand the differences weather makes to your greenhouse. Outside humidity, number of sunny days, amount of snowfall, intensity of winds are all factors to take into consideration. For Ohio, it would be wise to choose steel tubing as the framework for your greenhouse because of its durability in all types of weather, as well as its weight and load bearing capabilities. Build with the Future in Mind Experts say that the Ohio cannabis industry could hit a billion dollar...