Why are the leaves on the Calathea plant rolling inward on the leaves?
The leaves roll inward.Why?
Certified GKH Gardening Expert
This is caused by too little water. Keep the plant moist, but not wet. Do not allow wet feet.
This article will give you more information on their care: https://www.gardeningknowhow.com/houseplants/calathea-plants/calathea-zebra-houseplant.htm