why so late to start this season grows? Oklahoma gets to Hot to grow outside . like it's early July and the air temperature 105 Temperature to grow cannibis is 80 to 86 high end and 70 to 67 low end humidity 65% up to 72%. How are you watering. All the research I have done NW Okla is not the I deal region to grow outdoors. You need a green house or a ware house. And the wind is going to be another factor going to beat the hell out of them.