Susan Erickson wrote:
Tony -

I think they are a symptom of poor roots. The roots can not
absorb the water needed by the plant to expand the tissue that
has developed for the leaf structure.

Check your roots and you potting mix. Sometimes for seemingly no
reason the leaves will not flatten. They will remain folded
(accordion) and the roots are good.


I've had a few plants do this. Low humidity was the cause. They had
healthy roots and were putting out new growths, but low RH led to the
accordion effect. I have since used a humidifier. No more accordions.

The pleats are permanent.

J. Del Col