1 Red and 1 Green Prayer Plant - Maranta. Prayer plants and other nighttime movers are just trying to fool you into thinking they're settling down for a good night's rest. Prayer plants have big, oval leaves that turn upward at night. The folding and unfolding of the leaves happens in a regular pattern. Plant biologists call these daily cycles circadian rhythms. The Red and Green Prayer Plants are easy to grow. Just provide bright indirect light and keep evenly moist. Great houseplants! Light: Bright light. The plants you will receive are growing in 4" plastic pots. They are 4 to 8 inches tall and well rooted.