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My rattlesnake calathea has these random marks on the leaves. It’s… | Pests, diseases and problems | Plantaコミュニティ

Day

My rattlesnake calathea has these random marks on the leaves. It’s not everywhere but these leaves i cut. I got this plant 1.5 months ago from a local place and repotted it due to having fungus gnats. no more fungus gnats present! yay. i have it under a grow light on my plant stand. i water when soil is 2 inches dry and fertilize whenever plants tells me. i use distilled water and fertilize with a 20-20-20 when prompted to. Any idea??? thank you! Other wise it dances at night and day and all day long honestly!

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  1. Plant Dad

    My rattlesnake plant is my favorite plant in my collection! Great plant!! I'm going to throw out a couple of possibilities from experience I had with mine with similar spots. It potentially could be a watering issue, humidity issue or fertilizing issue. I have noticed that this plant, or calatheas in general, can be kind of sensitive to fertilizer. When I cut back on fertilizer, the spots stopped appearing; Now I fertilize when I remember. Then the spots starting showing up again because the humidity dropped too low for too long and the spots started coming back; If humidity drops below 45% I put it in my guest room and use a humidifier until the ambient humidity gets higher. The biggest issue I had with this plant was watering; I just couldn't figure it out. Keep moist bit dont let it get soggy. Let it dry out a little but not too much. Blah Blah Blah. A huge game changer for me with this plant was putting it in a self watering planter. When I did this, it was able to withstand slightly lower humidity and the soil was constantly damp which is exactky how they want it. Any other plant I have that is in soil that says they like the soil "consistently damp but not soggy" I still let dry almost completely out and they are fine. But this one always gave me attitude until the self watering planter. Hope that helps.

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    • Day

      thank you ☺️ 🫂 🙏🏻

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