I found the tip courtesy of Helen Norvall, after Swedish website the Year Round wrote about it.
She was fed up with her orchids not blooming, but managed to save them after trying this. Helen pulled up the orchids from the ground and rinsed away the soil residue. Then she took a wide, transparent vase full of water, placed the roots inside and let it stand by the sun to get light.
Two weeks later, the orchids had bloomed. It’s been two months now, and both have flowered magnificently. Helen revealed to the Year Round how happy she was, and she’s keen to share this tip with the world.
Help your friends by sharing this tip with others who might be struggling with their orchids. They’re sure to thank you!