Root Rot

Overwatering

To address root rot, first, stop watering the plant and allow the soil to dry out completely. If the plant is severely affected, remove it from its pot, trim away any black, mushy roots, and repot it in fresh, well-draining soil. Ensure the pot has adequate drainage holes. In the future, water the donkey tail plant only when the top inch of soil feels dry to the touch, and be cautious not to let water accumulate in the saucer beneath the pot.

Leaf Shrivel and Drop

Underwatering

To address underwatering in donkey tail plants, it's crucial to establish a consistent watering schedule that allows the soil to dry out slightly between waterings. Use your finger to check the moisture level; if the top inch of soil feels dry, it's time to water. Ensure the pot has adequate drainage to prevent root rot. During hotter months, increase watering frequency, but always allow the soil to dry out partially before the next watering.

Mealybugs Infestation

Mealybugs are small, white, soft-bodied insects that feed on the sap of the donkey tail plant, leading to weakened growth and potentially plant death if not controlled.

To combat mealybugs, start by isolating the affected plant to prevent the spread to others. Use a cotton swab dipped in rubbing alcohol to dab directly onto the pests, effectively killing them without harming the plant. For severe infestations, applying neem oil or insecticidal soap directly to the plant every 7-10 days for a few cycles can be effective. Ensure to check the plant regularly and repeat the treatment if necessary until the mealybugs are completely eradicated.

Leaf Drop

Environmental Stress

Donkey tail plants, or Sedum morganianum, are quite sensitive to changes in their environment, which can lead to leaf drop. This can be due to sudden temperature changes, drafts, or even touching the plant too much. To mitigate this, ensure your plant is in a stable environment with consistent temperatures. Avoid placing it in drafty areas or near doors that frequently open and close. Additionally, try to minimize handling the plant to prevent further stress. Gradually acclimatizing the plant to any new environment can also help reduce leaf drop.