Hey brother,Farmerlion even though that greenhouse has electricity and a tile floor it is still outside and it looks great. I was going to cry foul because of the tile floor. LOL! How many gallons are those black grow bags?
I use single planted 35 gallon grow bags and I double plant 45 gallon grow bags. I have found this is the most productive way after several years of trying different plant numbers and verifying the actual dried weights after harvest.
The tiles are 3/4" marble tiles from a reclaimed bank many years ago. I repurposed about 200 of these tiles. I could have used another 30 or so, but they make a nice protective barrier for the 2" Styrofoam insulation under the tiles.
This really equalized temperature fluctuations. It has also been extremely durable for several years now. This is a nice thread.
Peace farmerlion