Commonly known as the 'Prayer Plant', a Calathea plant is guaranteed to adorn your home with enchanting, multi-coloured greenery. Many often ask why this house plant is nicknamed the Prayer Plant, and the reason is pretty fascinating. At nightime, the leaves of this plant will fold upwards, resembling praying hands. Sometimes, you may even hear rustling! Because of this, if the leaves look a little droopy one moment yet stand tall the next, it should be no cause for concern!