Gets medium/bright indirect light, not overwatered or under watered (every 5-7 days), no signs of root rot or pests. Could this be an overwatering issue? The blackish parts of the leaf are more soft and thin rather than crispy.
by Leadership_Frequent
6 Comments
Dark spot usually mean overwatering. Peace Lily’s leaves turn kinda “sad” if it needs water that’s the right moment to water.
Looks like it’s rotting. What’s the ingredients and ratios of those ingredients in the substrate? How do you go about knowing when to water? How do you water?
This is almost a definitive sign of root rot.
I know you don’t believe it’s overwatered but that’s what this is a sign of. You could search “black spots on peace lily” on Reddit, Google, YouTube and you’ll get the same answer. I think we need to discuss your soil, pot drainage, and if you’re adding anything to your water. How long have you had this peace lily? Your leaves can show overwatering and you not have root rot. Anyway let us know so we can offer some solutions. They are thirsty plants but they also need to breathe.
Watering on a specific schedule typically leads to overwatering. Water when the leaves start to droop and/or when top few inches of soil is dry
Fungus can also cause dark spots like these on the leafs. The damage they cause is literally called dark spots. You can use specific sprays against it, thay you can buy
I know I’m in the minority here, but I think they’re fungal lesions. If you change your watering habits or the environment and the lesions come back, it’s for sure a foliar disease.
At that point, you can work to manage the symptoms, but a plant’s immune system is 100% preventative– once it’s infected, a plant can never be entirely cured. My policy is to just toss diseased houseplants.