Monstera Leaves Yellow And Brown Spots. The photo above came from a follower on mine on Instagram who had recently purchased her plant from a big box hardware store. If you see yellow or brown leaves on your Monstera you may be overwatering.
Nutrient deficiencies can cause spots on Monstera leaves. If you have been fertilizing once a month nutrient deficiency is an unlikely cause. If the lower leaves of your monsteras are the first ones to turn yellow overwatering is the cause.
A wound in the plant increases the chances of the plant contracting this disease.
This is a disease caused by fungi. A few tell-tale signs of their presence on your beloved Monstera plant are sudden unexplained leaf drop or yellowwhitebrown spots on the leaves branches or stem. Water your Monstera after the top 2-3 inches of soil completely dries. First the leaves will turn yellow then eventually brown before they die.
