CrazyWill, Thanks.

I used the insulated foam board on my first grow. Actually, the one I used already has reflective aluminum on one side, so theres' no need to line it. I don't want to throw off the air circulation and temps by putting up side walls right now. I may use a sheet for the floor to see if will help raise the soil temp through these cold days. Thanks

Okay, I needed more patience. The males are starting to pop up now. I have verified one plant and suspect two other males at this time. I pulled this one away from the others, and will try to mature it for seeds.