Monstera Peru Leaf Turning Yellow. Monstera leaves also turn yellow from lack of lighting and therefore in winter it is necessary to put a container with a flower near the window oriented towards the south. Yellow Monstera leaves can be a sign of overwatering.
If the edges of the leaves are getting yellow or brown new growth turning yellow under watering is the main culprit. Before giving your Monstera a drink check to make sure it needs water by sticking your finger a few. To help them you must identify the reason first and find a way to fix it.
Soil should remain damp but not wet.
Often these spots are uniform in size and have a yellow halo surrounding them. Unfiltered water containing adverse chemicals can also cause this issue. Ironically overwatering adversely impacts a plants ability to absorb water from soil. So your monstera can show symptoms like yellowing or browning of leaves.