Ctenanthe burle-marxii do best throughout the year in bright filtered light (a translucent curtain is a useful filter). Direct sunlight can cause the leaves of these plants to curl up.
During the active growth period water moderately, enough to moisten the potting soil throughout and allow the top centimeter or so (0.5 inch) of the soil to dry out before watering again. During the midwinter rest period water much more sparingly, giving enough to keep the mixture from drying out completely.
Normal room temperatures are generally suitable for Ctenanthe burle-marxii which cannot tolerate temperatures below 13oC. It is a good idea to stand the pots of Ctenanthe burle-marxii on trays or saucers of damp pebble to humidify the air around the plant.
High humidity is very important. If the air is dry, place your Ctenanthe on a pebble tray filled with water. Be sure the plant is sitting on the pebbles and not in the water.
Fertilize monthly in the spring and summer diluting the plant food at 1/2 the recommended strength. Fertilize every other month in the fall and winter. Never feed a Ctenanthe immediately after repotting, wait at least 6 weeks.
A Ctenanthe plant is slightly poisonous, although it is often listed as non-toxic. It may cause individual allergic reactions. The ASPCA states that it is not poisonous to dogs and cats.
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