Pictures show the outside - bench level is more or less ground level - floor is almost 3 feet below ground level ( steps down, better heat insulation, better natural humidity since gravel floor is below probable water table of garden soil). Exterior permanently insulated with triple wall bubble plastic. One inside pic shows the growlux 400 watt lamps - currently run 4-5 hours per day October-March, Heating by gas boiler and hot water radiators seen on the left of one of the pictures ; there are two gangways - this view shows one of them. Note large pots high over the gangway - these are mostly 10 ich pots of Vandas, A total of eight lines of hanging plants, the centre 4 - two on each side, get some light from the grow-lux. The other four don't. Right hand bench on this side view, next to the path, is all S/H - nearest plant is a Miltoniopsis. Others here are the Oncids etc. Paphs to the left of the path. The pic showing the lamps shows the cattleyas - about 300 of them all between the paths. Sweep fans for air-movement.




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Since I am so tall, I had to leave that space open to be able to walk through the greenhouse here. I still get soaked when watering the hanging plants in our space. hahah...
