What Does Root Rot Look Like? Inspect your plant every time you water. The root rot fungus attacks the roots and causes them to die and rot away. Use our house plant identification list to determine if you have yellow spots on plant leaves or another type of disease. Overwatering is the number one cause of root rot in houseplants and sadly, root rot is a condition that, if left untreated, will kill your houseplants. Roots giving off a foul and musty odor is also a sign of root rot. Because the first symptoms of root rot occur beneath the soil, gardeners are often not aware of the problem until it is advanced. Prevention is the best option because root rot is hard to treat. Look for early signs of root rot for the best chances of saving your plant. The houseplant pictured above has an extreme case of root rot. Many houseplants are capable of catching a disease. Take extra care with the watering of your plants, and hopefully that will be enough for you. Healthy roots = a healthy houseplant. Signs of Root Rot in Plants . Damaged, sick, or rotting roots = a sickly or dead houseplant. Some symptoms include waterlogged soil, yellow spots on plant, growth slows, and stunts that leads to different type of diseases. If the houseplant does have new growth, it … Detecting Root Rot Early Signs. Make sure to be on a lookout for these “Signs of Overwatering” so that you can save the plant before it’s too late! Prolonged exposure to soggy soil causes root rot which you can see if you work through the soil, a bit exposing the roots. When plants start showing symptoms of root rot, such as yellow leaves or stunted growth 1, take action immediately to resolve the problem. Once the fungus is established and the damage done, you won’t be able to save the plant. Root Rot Treatment. In general, a houseplant with root rot won’t look healthy. Be forewarned that a severe case of root rot cannot be fixed. Dilute about 1-1/2 teaspoons of 3% solution in a cup of water and spritz the affected leaves and stems. To save a plant from root rot, try removing it from the soil and washing the roots clean. Hydrogen Peroxide is commonly used to combat root rot in hydroponic setups and may be effective for regular houseplants, too. Root rot is a condition that, if left untreated, will kill plants. Signs of root rot include a plant that is slowly wilting and leaves that are turning yellow and falling off. Often the leaves will be droopy, despite wet soil. Common houseplants occasionally succumb to disease. If you can, inspect your plants daily to keep an eye on moisture levels and early signs of root rot. The foliage will often have a dull appearance.