African Violet Crown Rot: Understanding and Treating this Common Disease

African violets are a popular houseplant known for their beautiful, delicate flowers and lush green leaves. However, like all plants, they can fall prey to various diseases, one of which is crown rot. Crown rot is a fungal disease that can be fatal if left untreated, causing the African violet's leaves to wilt and turn yellow, and ultimately leading to the plant's death.

What Causes African Violet Crown Rot?

Crown rot is caused by the fungus Rhizoctonia solani, which thrives in warm, humid conditions. The fungus attacks the base of the African violet's stem, causing it to rot and preventing the plant from absorbing water and nutrients. Crown rot is often brought on by overwatering or poor drainage, as the excess moisture creates an ideal environment for the fungus to grow.

Identifying African Violet Crown Rot

The first signs of crown rot are usually visible at the base of the African violet's stem. The stem may appear soft or mushy, and the leaves may start to droop or turn yellow. As the disease progresses, the stem will continue to decay, and the leaves may fall off the plant.

If you suspect your African violet has crown rot, carefully remove it from its pot and examine the roots. Infected roots will appear black or brown and may be slimy to the touch. You may also notice a foul odor coming from the soil.

Treating African Violet Crown Rot

If caught early, African violet crown rot can be treated, though it requires prompt action. The first step is to remove any infected leaves and stems, taking care not to spread the fungus to healthy parts of the plant. Next, repot the African violet in fresh, clean soil mixed with perlite or vermiculite to improve drainage.

It's important to avoid overwatering the plant during treatment. Allow the soil to dry out slightly before watering, and avoid getting water on the leaves or stem, as this can encourage the growth of the fungus. In severe cases, it may be necessary to use a fungicide to eliminate the infection. Be sure to follow the instructions on the product label carefully.

Preventing African Violet Crown Rot

The best way to prevent African violet crown rot is to provide your plant with proper care. Avoid overwatering by allowing the soil to dry out slightly between waterings, and make sure the pot has adequate drainage holes. Use a well-draining potting mix, and avoid compacting the soil around the plant's roots.

It's also important to keep your African violet in a location with good air circulation and moderate humidity, as these conditions discourage the growth of the fungus. If you notice any signs of crown rot, isolate the plant immediately to prevent spreading the infection to other plants.

African violet crown rot is a serious disease that can quickly kill your beloved plant if not treated promptly. By understanding the causes and symptoms of crown rot, you can take steps to prevent it from occurring and catch it early if it does. With proper care and attention, your African violets can thrive and bring beauty to your home for years to come.

A healthy African violet plant

African violet, disease prevention, houseplants, plant care, fungal infections, Rhizoctonia solani, plant rot, soil drainage