Yes. ZZ plants can suffer root and rhizome rot when their potting mix remains saturated. Their water-storing tissues make them more tolerant of dryness than chronically wet soil.
The early warning signs
Yellowing leaves, a persistently heavy pot and weak or softening stems can point to root trouble. Because several conditions have similar symptoms, confirm the soil moisture and inspect roots if the problem progresses.
How roots look when unhealthy
Healthy roots and rhizomes should be firm. Dark, mushy or foul-smelling sections suggest decay. Do not confuse naturally dark surface coloration with rotting; texture matters.
What to do if rot is present
Remove the plant from the container, discard soggy media, carefully trim dead tissue with clean tools and repot viable sections in fresh free-draining mix. Avoid leaving standing water in the saucer.
Preventing a repeat
Use a pot with holes, give enough indirect light and check the mix below the surface before watering. In winter or dim conditions, intervals between watering may be much longer than in summer.
Frequently asked question
Can overwatering happen with only a little water?
Yes. Frequent small additions can keep the root zone constantly wet even if each individual watering seems modest.
Sources and further reading
See this university, government or veterinary source for more information.
Leave a Reply