Why does your Philodendron Congo have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Philodendron Congo prefers to dry out slightly between waterings; constant moisture leads to oxygen deprivation in the soil, causing rhizome decay and yellowing foliage. This is the most frequent cause of leaf chlorosis in this species.
As a fast-growing cultivar, the Congo Philodendron requires consistent nitrogen levels to maintain chlorophyll production. A lack of nutrients often manifests as older leaves turning pale yellow before moving to newer growth.
While tolerant of low light, extremely low light levels prevent the plant from photosynthesizing efficiently, leading to weakened, yellowing leaves. Conversely, intense direct sunlight can scorch the leaves, causing them to turn yellow and then brown.
Philodendrons are tropical plants that thrive in stable warmth; exposure to sudden cold drafts from windows or air conditioning units can shock the plant and trigger leaf yellowing.
Your plant might also be experiencing one of these issues:
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