Yellow leaves

Hey all,

My peace lily has been doing great for about two years but lately the lower leaves keep turning yellow and going soft. At first I figured it was just old leaves dying off but now it's happening to five or six of them and I'm getting concerned.
It sits in bright indirect light, I water about once a week when the soil feels dry, and it's still in the original nursery pot with drainage. Haven't repotted or fertilized in over a year.

I found this article that's been really helpful for understanding the basics. Sounds like it could be overwatering, light issues, or a nutrient deficiency. I've been letting the soil dry out more between waterings but no luck so far. The newer growth still looks healthy though, it's just the older bottom leaves going yellow.

Would love to get some more input from people who've dealt with this. Should I be looking at repotting, fertilizing, or something else entirely? Trying not to change too many things at once but I'm not sure what to prioritize. Any advice is appreciated!

It might need to be reported if you haven't reported in 2 years. I would suggest caution however because repotting often leads to the death of a plant. Suddenly your plant has empty soil around its roots (therefore it doesn't dry very fast.). It makes fungal issues and fungus gnats a sudden concern.  That being said, if you can pull the plant out of the pot and see a whole bunch of white roots, repotting is probably necessary. Try not to get a pot that's more than 2 inches bigger in diameter than your current pot.  That will mitigate the fungal issues.

Also what are you watering it with? A lot of municipal water has a surprising amount of salt in it, and that can build up over time.  I find that plants will start to show yellow edges of leaves as they start to show the salt poisoning. You can literally flush the soil out by taking your plant to the shower and just adding a ton of water in the soil several times. It might also need some organic fertilizer if you haven't fed it in 2 years.

Edit:  I also forgot to mention, if you pull the plant out of the pot and you see a bunch of brown squishy roots, that's definitely over watering. Cut away as much of the dead roots as possible, they'll just spread disease. And then water less often. Peace lilies tend to show you they want water by wilting.

Welcome to the forum, Heather!  I agree with Anna the pot is getting small for all that foliage and soil is probably exhausted. It is easy to fix. Just pull the whole root ball out and tease the roots apart. Clip away any rotten or dead roots. You can either divide it into more pots or increase the pot size. Regular potting mix would work, though some are of better quality than others. Your peace lily will likely respond with blooming afterwards.

I would definitely re-pot to a larger pot, top dress it with some worm castings and water with rain water.