Underwatering

What's happening

Calathea Orbifolia likes its soil to stay lightly, evenly moist and reacts quickly when it dries out. The big round leaves curl in along their length and the whole plant droops to reduce the surface area losing water. Left too long, those curled edges crisp permanently even after you water.

How to fix it

Water thoroughly with filtered or distilled water until it drains from the bottom, then let only the top inch dry before the next watering — never let the pot go bone dry. If the soil has dried so hard the water runs straight through, bottom-water: set the pot in a few inches of room-temperature filtered water for 20–30 minutes, then drain fully. A moisture meter takes the guesswork out of keeping it consistently, lightly moist.

This is general guidance based on common symptoms; individual plants vary.