Humid spots, not sunny windows: where to place a peace lily for best blooms
To help a peace lily thrive and bloom, place it in a humid, indirect-light spot (such as a bathroom or kitchen) rather than a sunny windowsill. It prefers north or east-facing light away from radiators and drafts, and you should water to keep the soil moist but not soggy (don't overwater). Regular misting or a small humidifier can boost humidity. Also note that peace lilies are toxic to pets, so keep the plant out of reach of cats and dogs.