Some do need a rest to complete their growth cycle, but for others this hack could be stressful
The problem
Winter plant advice is full of contradictions. Rest your plants; don’t rest your plants. Move them to a cooler spot; keep them warm. One common tip is to put certain houseplants in a dark, cool spot, to mimic natural dormancy and give them the rest they need.
The hack
Some plants need a period of reduced light, cooler temperatures and minimal watering to complete their growth cycle. Forcing this dormancy by moving them somewhere darker and cooler in winter is said to result in stronger growth, better flowering and a healthier plant come spring.