Why Is My Monstera Peru Turning Yellow. I live in Singapore where its warm and humid. The main reason why leaves will be turning yellow and dying would be related to the soil.
If your Monstera leaves turn yellow it could be one of three problems. It is natural for one to forget the watering. If your soil has gone too dry completely dry the oldest leaves will turn yellow first.
Damage from indoor plant pests can cause your Monsteras leaves to develop yellow spots or generalized yellowing.
If the leaves of your Monstera adansonii plants start to turn yellow it is a sign that something is not right. It is to be expected that occasionally some lower older leaves will yellow and die. Unfiltered water containing adverse chemicals can also cause this issue. After extensive research I found that there are several reasons why the leaves of your Monstera are turning yellow.