Yes, overwatering can lead to yellowing leaves in hibiscus plants. When the roots are constantly saturated, they may suffer from reduced oxygen availability and nutrient deficiencies, resulting in yellowing foliage. This yellowing is often accompanied by wilting and browning of the leaves. Proper watering practices, allowing the soil to dry out slightly between waterings, can help prevent yellowing caused by excessive moisture. Note: If you have additional concerns or specific symptoms not addressed in this FAQ, it's recommended to consult a gardening expert or horticulturist for personalized advice.