Recently I was given a somewhat sorry looking mint plant. I looked it up and placed it in a sunny window after hearing it loved the sun, but overnight the edges of the leaves started darkening and curling in, and the leaves kept wrinkling up almost as if they were scorched! So I moved it out of direct light, but still in a sunny room, yet the leaves continue to burn and die, and the stems are browning. It's like the whole plant is drying up, but the weather hasn't been that hot. I water it, there are no signs of insects, it's out of direct light, but it still isn't doing well. What am I doing wrong?
Dying Container Mint
Certified GKH Gardening Expert
If it was dug up for you from the ground, it may be transplant shock. This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm
If not, it may be root rot. This article will help with that: