From my point of view as an African Violet, my crown is my most vital and vulnerable point. It is the central growing point from which all my new leaves and flower stalks emerge. This dense cluster of young, tender tissue is the heart of my being. However, its structure creates a perfect environment for disaster. The overlapping petioles (leaf stems) can trap moisture and debris, and any damage to this area provides a direct pathway for pathogens to invade my core. When this happens, the condition you call "crown rot" begins, which for me is a life-threatening crisis.
The main cause of my crown rotting is an attack by parasitic fungi, most commonly from the Pythium, Phytophthora, and Botrytis genera. These pathogens are ever-present in the environment, lying dormant in soil or on pots. They cannot easily infect me unless I am weakened or given an open door. The two most common ways they reach my crown are through excessive moisture and physical damage. When water is allowed to sit on my leaves or pool in my crown for prolonged periods, it not only softens my protective tissues but also creates the humid, stagnant conditions these fungi need to germinate, multiply, and launch their assault.
Several cultural practices directly contribute to the conditions that lead to my demise. Overwatering is the most frequent mistake; my roots need oxygen as much as they need water, and saturated soil suffocates them, creating stress that makes me susceptible to the fungi already in the potting mix. Watering from above and allowing cold water to splash into my crown is a direct invitation for trouble. Furthermore, any physical injury to my crown or main stem—whether from rough handling, pest damage, or even fertilizer burn—creates a wound that these opportunistic pathogens can exploit to gain entry and begin their destructive work.
To protect me, you must mimic my preferred conditions and avoid practices that put my crown at risk. The single most important prevention method is proper watering. Please water me from below by placing my pot in a saucer of water for about 30 minutes, allowing my roots to draw up the moisture they need. Then, always discard any excess water. This keeps my crown and leaves perfectly dry. Ensure I am planted in a very well-draining potting mix specifically designed for African Violets; heavy, water-retentive soil will surely lead to root suffocation and stress. Use room temperature water to avoid shocking my system. Finally, provide me with good air circulation around my leaves, which helps evaporate any accidental moisture and discourages fungal growth, keeping my crown happy, dry, and healthy.
