BTW, to share an update, I've mostly converted this semi-pit tunnel greenhouse into a 'fig house' and have moved most of the bananas into a bigger new pit tunnel greenhouse. There's only a small patch of Dwarf Orinocos remaining in there, but they've got 5 bunches hanging.
The new pit greenhouse is about 80' long x 17' wide x 11.5' tall (inside height), and the pit is around 4' deep. This will finally give me the headroom to allow some of the dwarf varieties to flourish, and to give me a punchers chance at getting fruit from my bigger projects like SH-3640 and Pisang Ceylon.
The new tunnel will also be holding almost 12,000 gallons of water in various pools, and since I'm going to be maintaining those water temps above 50F (probably above 60F) over the winter, the internal environment should stay warm enough for the super cold-sensitive AAA bananas to flourish.
Here's what I've got started in the newest greenhouse, with the number of mats in parenthesis if greater than 1 (pics to follow, maybe tomorrow morning when it's not so hot in there):
Dwarf Cavendish (5)
Dwarf Orinoco (5)
Dwarf Red (2)
Dwarf Namwah
Dwarf Brazilian (2)
Grand Nain (3)
Williams Hybrid
Glui Kai/Pisang Mas
Cocos (from Encanto Farms...is it the real deal?)
SH-3640 (2)
Pisang Ceylon
Between the pools and those bananas, almost all the space is already taken. But I still have a prime location reserved for Highgate and an area set aside for a couple of orange trees