Faux Desert Candle Cactus with Plastic Pot 23" Your Calathea isnt difficult its just reacting to what youre doing , Most of the time, when a Calathea starts showing brown tips, curling, or fading its not random. Its one of these common Cactus disease dry root rot caused by fungi, severe damage fungi infected Gymnocalycium cactus isolated on white background showing serious damge at s Stock Photo Alamy Calathea Orbifolia 72 cell What is that White Cottony Stuff on my Prickly Pear Cactus? Phil Hardberger Park Conservancy