my dieffenbachia leaves are turning yellow and limp.

Question

Am I over watering? Dirt is not soggy. How often should I water it?

Answer 1

Yellowing leaves can indicate a watering issue; too much or too little.
This article will help refresh you on the care requirements.

https://www.gardeningknowhow.com/houseplants/dumb-cane/growing-dumbcane-dieffenbachia.htm