I have devils backbone for years. Repotted it. Now the leaves are curling and wilting.

Question

What did I do wrong? I feel like I overwatered, if so what do I need to do?

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Answer 1

It does seem to have damage from overwatering. I would start by potting into fresh, well draining soil to make things easier to correct. If you get the soil moist but not sopping wet before you plant, it will keep from overwatering the first time after transplant. Once you do water for the first time, make a solution of 1 tablespoon hydrogen peroxide to 1 cup water. Water this in once, and let it work in for a week or so. Make sure to let the top 2 or 3 inches of soil dry out almost completely before watering again.

The old leaves will not recover, but new leaves should be free of infection. Once you see new clean growth, prune off anything dead. If the plant still seems infected in the new growth, then do the treatment one more time.

https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm