Staff Answer
Jan 17, 2022 - 10:23 AM
These tubercles are supposed to be firm. There are some differences between symptoms of root rot and underwatering that'll hopefully help you ferret out the difference in your plant.
Root rot is marked by a discoloration in the stem. If your stem is yellowing at the base, chances are you're dealing with root rot. Also, if you squeeze a tubercle that's yellowed and your fingers feel wet afterwards, that's just more confirmation. If you're still unsure, dig the cactus up and look at the roots. If some are blackened and slimy, you're dealing with root rot.
Underwatering usually comes with a lack of yellowing in cactus and more wrinkling than root rot causes.
Root rot is marked by a discoloration in the stem. If your stem is yellowing at the base, chances are you're dealing with root rot. Also, if you squeeze a tubercle that's yellowed and your fingers feel wet afterwards, that's just more confirmation. If you're still unsure, dig the cactus up and look at the roots. If some are blackened and slimy, you're dealing with root rot.
Underwatering usually comes with a lack of yellowing in cactus and more wrinkling than root rot causes.
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