Concerning Stems
This is showing up on a few of the stems on my ZZ Plant. Is this root rot, or from pests?? 
Thanks!! 
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    Pei [291426,jenna] is a ZZ expert. Maybe she can help!
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    Caitlyn Jones [288486,PlntNrd] the areas were not quite mushy, but definitely a weaker consistency than the rest of the stems. I typically give this plant a splash of water (probably 1/4 cup or less, but I haven’t been measuring) once every other week. I am new-ish to being a plant owner, so I haven’t experienced root rot yet or know exactly what it looks like. I unpotted and cleaned off the roots to check them out. I didn’t see any obvious signs of rotting (to my naive eyes, let me know if I’m missing something in the picture). So I separated the 3 questionable stems and repotted the rest of the plant with clean soil. I put the questionable ones in a separate small pot to see if they can recover. I had no idea about the water getting on the stems/leaves though! Than you for that tip!
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      Erin Hey there! I only water my ZZ plants when their potting mix is bone dry- which is about every 3 weeks in moderate indirect light.

      In my experience I've found more water but less frequently is better than less water more frequently. You kind of want to imagine the plant in its native habitat, which for the ZZ plant would be Africa. So rains are less often, but when it does rain, the surrounding dirt is moist. Hope that helps!
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    PlntNrd Are those areas soft and/or mushy? Is yes, then it is rot. That’s what it look like from the pic. That pot doesn’t have drainage and ZZ plants do not need much water, so I would suspect that it may be overwatered. How much and how often have you been watering it? I have the same plant in the same pot and I only water a small amount twice a month. Every environment and home is different, so yours may need more or less, but if you’re watering a large amount and very often you may want to change that. At this point, since there are already signs of rot, you might want to unpot, check to see if the rhizomes are rotted, remove affected stems/areas and repot in fresh, clean, dry soil. I also see water droplets on the stems in the pic, when watering you may want to just wet the soil and not the plant itself. Getting water on the stems or leaves can cause issues with rot, mold, etc and ZZ plants are considered to be succulents and should be treated as such. Good luck.
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    Caitlyn Jones Full plant view
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