Water a Calathea Plant with distilled water, rain water, or allow your tap water to sit out over night before using it. Calathea Plants like moist but not soggy soil at all times, but never allow a Calathea Plant to sit in water. Allow the top 2-3” of the soil in the pot to dry out before watering. fertilizer.Click to see full answer. Keeping this in consideration, why is my Calathea plant dying?Wilting or drooping leaves is typically a result of the plant being thirsty. However, the leaves of this plant move up and down following the light, so be sure to feel the soil to ensure you’re not mistaking your Calathea’s natural movement for needing a drink before giving your plant water.Subsequently, question is, should I mist Calathea? Prayer plants also enjoy being grouped together, which increases the overall humidity. While some might appreciate being misted, take care not to mist them directly on the top of the leaves (or have moisture fall into the tightly raveled straws the new leaves make). Also Know, how do you save a wilting plant? If you find your plants wilting from lack of water, you may be able to save them by promptly giving proper hydration. Ensure that the plant needs watering. Move the wilted plant out of the sun, if possible. Set wilted container plants with dry soil in a sink or tray filled with water. What is wrong with my Calathea?Calathea can be a bit temperamental when it comes to care. If there are any problems with Calathea care, they come from over or under-watering and lack of the right temperature or humidity levels.