They do require adequate watering and other conditions, but as long as you pay attention to it a couple of times a week, and place it in the proper light and with propper humidity, it will grow happy and healthy. Repot in spring, every couple of years, into a slightly larger pot. How To Grow And Care For Calathea White Fusion When the majority of calathea leaves start to curl and discolor, they must be immediately repotted into the new soil. Calathea plant care philippines . To clean them, use a damp cloth to remove the dust. You don't have to call a greenhouse or glass atrium home in order to care for one of these tropical beauties. Calathea plants need light, but you should never subject them to direct sunlight. Pot this plant in a well draining houseplant soil or mix. You certainly can use tap water, but if you have experienced brown edges and want to take your calathea care to the next level, try using distilled or ro water for a period of time and monitor the new ...