After trying several options for humidity, we found a 3 head fogger from www.thehouseofhydro.com that is strong enough to keep the humidity high even while the heater is working hard. After a few days near 75F and 70% humidity in the inner area, we moved about half of the trees back out there. We replanted the trees into gallon milk jugs which we hung with a shower rod through the handle. We made a makeshift punch to cut the holes with a one foot section of closet rod, given an edge with a round file.
