Monstera Leaves Turn Yellow. Monstera like many houseplants originated as tropical plants. Your soil is either too wet or you havent watered your plant in a while.
If it is underwatered the smallest of the monstera leaves start to turn yellow and fall off the plant in the case of monstera. Actually there are a number of diseases that can cause your plant to turn brown. Only water your Monstera when the top 2-3 inches of soil are dry.
If your Monstera deliciosa develops yellow leaves after youve repotted it it might be suffering from transplant stress.
Christine repots her Monstera Adansonii which has developed yellow leaves since summer ended a couple months ago. It could be watering issues overwatering or under-watering. Finding those yellow leaves on your monsteras is not a good sign. Root rot is one of the most common causes of black spots on Monstera leaves.