So far I am pleased with my HFGH except I wish I had gone 8 x 10 instead of 6 x 8. It's kinda crowded in there already. Today I planted seeds in long containers - lettuce, arugula, misoto rose radishes (can't wait for these), regular radishes, and Anaheim chili peppers. The plants I moved I moved in there already have lemons and mammoth jalapeños. Lots of herbs. Three large tomatoe plants in bloom.
Been running the fan in there a bit as it seems like it might be good for the plants.
Am planning to add some raised bed planting area along the south side of the GH building with cement blocks, and "lids" with corrugated polycarbonate panels attached to PVP pipe. I figure I can grow a lot of spinach, lettuce, and other winter crops this way and get 8 feet long of planting space down that side.
Husband built me a potting bench with cement blocks and a chunk of granite that was left over from kitchen counters when we built the house. That is SOOOO nice. He used that cement "glue" in tubes from Home Depot so no cement work involved. HD buckets hold organic soil.
I am sure an amature at all this but it was so much fun planting and being outside today.
I appreciate this forum and everybody sharing their ideas.