The light requirements make this plant an attractive choice for lower light homes, but please note: These plants do poorly in direct sun, which can bleach the leaves. Place your prayer plant in a part of a room that receives low to bright indirect light. As a rule, the darker the foliage – such as with the calathea ornata – the lower the light requirements.Like all houseplants, calathea enjoy filtered or dechlorinated water, and can be a little more demanding than other houseplants. Simply fill your watering can and leave it overnight to dissipate the chlorine.