Indoor Caladium plants require a medium light area with protection from midday sun, which will scorch the leaves. A northern or eastern window is usually the best exposure. Humidity is crucial to Caladium houseplant care as the tubers are native to South American tropical forests and produce seasonal foliage during the rainy, warm season.
Mimicking the plant’s native conditions is key to successfully introducing the plant to the home interior. Keeping the humidity high in a heated home may be done with misting and by placing a saucer filled with pebbles and water under the container. The evaporation will moisten the ambient air and provide the humidity necessary for your Caladium. Keep your plant away from heating vents which will blow dry air and drafty windows or doors. While your plant is still in its foliar glory, you will need to keep it watered and happy. You should only fertilize the plant when it is actively growing during spring to late summer. In the fall and winter, no special food is necessary. Water the soil when it is dry to the touch. Keep the plant in an area with temperatures of at least 65 degrees Fahrenheit (18 C.). When the leaves begin to die back, allow them to persist until fully spent and then cut them off. You can then either lift the tubers, allow them to dry and store them in peat in a breathable bag or leave them in the soil and suspend watering.
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