Q.My Orchid\’s Leaves Are Looking Wilted. What Is Wrong?
I have had my orchid for about 2 1/2 years. It has bloomed three times with about 10 blooms on both stems. I water it once a week, soaking the plant in the pot for 5 minutes. I fertilize twice a month. Recently the leaves have all gone limp. It gets plenty of light. The orchid pot is in a pot which sits in a saucer of water/pebbles. I mist almost daily. Thanks you!!

Certified GKH Gardening Expert
My first suspected cause will be just a little too strong of a nutrient mix. This can build up as salt over time in your container. This can happen with pH issues, which can be attributed to a different ratio of nutrients than required by the orchid, as well.
Be sure that this is an orchid fertilizer,specifically, and even better would be to use it as a foliar spray at half strength, but twice as often, instead of a root drench if that is the way this plant is fed.
I could recommend misting daily, as well. This can happen when the humidity isn't quite high enough. Even multiple mistings per day can help.
Here is an article for more information:
https://www.gardeningknowhow.com/ornamental/flowers/orchids/tips-on-fertilizing-orchids.htm