If unsure, move potted cacti indoors as soon as temperatures drop to about 45 to 50 degrees Fahrenheit. Stop watering cacti 3 to 4 weeks before the move so the plants are dry, and check them ...
As Ms Kumari comments, "plants do give you a sense of calm." Ultimately, air-quality experts remain in favour of indoor plants. But we shouldn't expect the world of our potted friends.