Light. Give it indirect, medium to low light or dappled shade. Direct sun scorches the leaves.
Water. Keep the soil moist but never soggy, since overwatering rots the stems. Rainwater or distilled water is better than tap water, which can harm the leaves.
Soil and feeding. Use a rich, well-drained Potting Soil high in organic matter.
Size. Usually about 1 ft tall in a 6-inch pot. Calatheas range from about 9 inches to 3 ft.
Problems to watch. Brown leaf edges mean the air is too dry; curling or yellowing leaves point to underwatering. Aphids, scale, mealybugs and spider mites can appear; treat with Insecticidal Soap.
Good to know. It likes high humidity and 65–75°F, away from drafts and sudden temperature changes. Outdoors it is rated for zones 11–12, so protect it during cold snaps. Many calatheas are now classified as Goeppertia.
Sources: NC State Extension Plant Toolbox: Goeppertia (Prayer Plant, formerly Calathea)
