With it's distinctive, colorful leaves, the prayer plant (Maranta leucoreura) is a striking indoor plant. The dark green leaves with red veins and pale green edges fold up at night like praying hands, and don't open up until the next morning. The prayer plant isn't difficult to grow, but the plant does have definite requirements that must be met for the plant to thrive.
Place the prayer plant in moderate, indirect sunlight. Avoid placing the plant directly in a hot, sunny window.
Keep the soil evenly moist at all times during spring and summer, and never allow the soil to become either soggy or bone dry. Pour out any water remaining in the saucer under the prayer plant, and don't let the pot stand in water. Cut back on watering during fall and winter and keep the soil just slightly moist. Water the prayer plant with warm water.
Fertilize the prayer plant once every month between spring and fall, using a regular fertilizer for indoor plants. Withhold fertilizer during the fall and winter months.
Keep the prayer plant in a warm room during the winter months, and don't expose the plant to a cold drafts, which can cause the leaves to shrivel.
Place the prayer plant on a humidity tray to increase humidity around the plant. To make a humidity tray, fill a tray with pebbles or gravel and add a small amount of water to the tray. Set the pot on the wet pebbles, but be sure the water isn't deep enough to touch the bottom of the pot.