I only know that the water temperature for watering the orchids should not be below 16°Celcius and I followed it. My orchids are doing well.
I was really curious if I can put an ice cube in an orchids so, I have searched online if an ice cube can be put in an orchids. It seems that there was an experiment at Ohio State University and the University of Georgia regarding putting ice cubes on the orchids plant for an irrigation. It was stated that 3 cubes of ice can be use as an irrigation for orchids but only once a week. So, yes you can do it. For more information, please check online. Thanks for commenting.