My Monstera Has Yellow Leaves. Monstera adansonii leaves turn yellow because of an incorrect amount of water light and fertilizer. The best measure to detect rotten roots is an emergency Monstera transplant.
Yellowing leaves on the monstera are some signs of underwatering the plant. The most common cause of yellowing leaves among Monsteras is improper soil moisturein particular overwatering. Probably the most common reason your Monstera leaves are turning yellow is from the soil being too dry.
If you notice the lower leaves especially the oldest leaves are turning yellow go ahead and feel the soil.
Repot your Monstera into a clean pot with new dry soil and cut off the stems with the black leaves there is no point is having your plant waste energy on those leaves. My Monstera Leaves Have Black Splotches with Yellow Rings. But come to think of it all my philodendrons grow in full sun too. Once you have discovered and resolved the cause of the yellow leaves they should return to their normal green color within a few months.
