ventilation

I need to cool my closet, I have my temp gauge in there and it reads 90 on hot days with a humidity of 32. I'm thinking of putting a exhaust fan in my closet push all the hot air into my attic. Then allowing air from my bedroom to come though, also I'm installing a 4" pass though for air on the door itself. Should this be enough to grow my autos ask for advices tips comments

I assume the ambient temps in your bedroom are far lower than 90F in the closet. An exhaust and intake vent will make a big difference. If installing a vent in the door, put it near the bottom, and put the intake to the exhaust fan at the top, to take off the hot air first and pull in cool air on the bottom. Also, put a fan inside the closet to move air around the leaves.

Awesome this was my same idea thanks