Keep in mind, Lucky, that other than starting seeds and rooting plumeria, my greenhouses are basically emptied in March/April Everything goes outside. In the summer, even with vents and doors open, 70-80% shade cloth in place, and all fans running full speed, my greenhouses get 110-120F. Without AC or a swamp-cooler, there is absolutely nothing I can do about this. These high temperatures are anything but "kind" to tropical plants. My fans simply move air.