Replace walkin greenhouse cover with 40-60 %shade clothe

[Roberta]

Do your research! You can learn about the parentage of hybrids from orchidroots.com and habitat data of species from IOSPE In the case of species, look at elevation and latitude... on the equator, elevations about about 1200 m do fine with winter, below about 800 m, probably need protection. At higher latitudes, those elevation guidelines move down... southern China or the Himalaya area, 500 m is usually pretty cool ion winter.

You can do trial and error, and likely lose quite a few, or do the work to learn about where they come from, and greatly improve your odds. Nobody bats 1.000,