ZZ Plants
Q.

ZZ Plant

Zone Mesa, AZ | joann kenyon added on October 15, 2017 | Answered

The ZZ plant has developed dark round markings on the stem as it has become more mature. Is this normal?

A.
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BushDoctor
Certified GKH Gardening Expert
Answered on October 15, 2017

It is possible that some markings are normal, but if they are dark and spreading, I would say it could be fungal in nature. Here is an article that will give you more information: https://www.gardeningknowhow.com/plant-problems/disease/treating-root-rot-gardening-tips-for-housplants.htm

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