How to rescue a peace lily?

It's about 11 years old. Normally I'd just toss it out but this one has sentimental value.





I use good fertilizer, but the leaves are curling and although it's still alive, it looks bad. I keep in indirect light and it's sitting in a jar right now with soil, and the roots are under water. My house is pretty warm all the time.





Please help - any ideas welcome.

How to rescue a peace lily?
Get it in a good pot with good soil. They only tolerate the under water thing for a period of time. I'm looking at mine right now that is 13 years old. It stands 4 foot high and is 4 foot wide. Its quite the conversation piece at my house.
Reply:if the leaves are curling look for insects like scale.they look like little shields and the insect is inside sucking the sap.after repotting the spathiphyllum up in a premium potting mix give a seasol solution to help "stress".you can buy a spray that is a fungicide and pesticide in one.if no insects are found you could have a fungus called curly leaf.treat with the combo.retreat a few weeks later.just for interest sake look inside the leaf stems.if you see a woolly substance these are called woolly aphids.they can be treated with soapy water slashed on them

flowers anniversary