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I have a peace lilly-spathiphyllum that isn't looking great. The leaves are light green/yellow with browning tips. I keep it well watered & fertilized. I was wondering if it is getting too much light perhaps? Or do I need to divide this plant? I repotted about 10 months ago when it started looking like this, but it has never really thrived. I see other peace lilles with dark green glossy leaves and wonder what I am doing wrong.
If you could post a picture of it that might help narrow down the many possible causes. It could be too much water, or if it's a bit on the big side for the pot it's in it could be rootbound and need to be repotted (although that's less likely since you said it was like this before & after your last repotting). To test for watering, stick your finger down a couple inches into the soil before the next time you were planning to water and see how wet the soil feels--if it's still feeling pretty wet then you should wait longer between watering. Also if your pot doesn't have drainage holes that makes it even easier to overwater, so I would transplant it into a pot that does have holes (and if the container does have drainage holes but you keep it in a saucer, don't let it sit in a saucer full of water either). It may also be too much fertilizer, fertilizer burn can cause similar leaf symptoms to what you're describing.
moisture stress always shows up at the tips of the leaves (farthest from the roots). this can be too much or too little water. If the soil is always soggy, it's too much. Otherwise, it's likely too little. As the other reply indicated, fertilizer can cause "burn." You mentioned light. Does it get direct sun? These are shade-loving plants.
