What to Do If a Cast Iron Plant (Aspidistra elatior) Has Root Rot? Causes and Solutions Here

1. Replace the Soil

Cause: When the potting soil of the cast iron plant is not aerated, the roots cannot breathe normally, and once the root system lacks oxygen, root rot is very likely to occur.

Solution: You can replace it with well-aerated potting soil, and loosen the soil from time to time to help the cast iron plant grow better.

2. Reduce Watering

Cause: Too much water in daily watering makes the soil overly moist, and combined with a non-aerated environment, the water will keep accumulating in the potting soil, the cast iron plant's roots cannot breathe, and root rot will occur.

Solution: Make sure there is sufficient water, but no waterlogging; keep the potting soil moist. You can frequently spray water on the leaves. In autumn and winter, reduce the amount of watering. In winter, keep the potting soil slightly dry, and you can stop watering depending on the situation.

3. Increase the Temperature

Cause: Lower temperatures in winter will freeze and damage it. The cast iron plant has relatively weak cold tolerance, and being in a low-temperature environment for a long time will cause root rot.

Solution: In winter, appropriately increase the growing temperature, and do not let it go below 5°C at minimum. You can also simply place it indoors to grow, so it will not suffer frost damage.

4. Fertilize in Moderation

Cause: If you frequently apply large amounts of fertilizer or high-concentration fertilizer, the cast iron plant will find it hard to absorb, or if you apply raw fertilizer to it, a similar situation can occur, possibly burning the roots and causing the roots to rot.

Solution: Control the amount of fertilizer, and do not apply too much fertilizer at one time. Generally, applying a dilute cake fertilizer solution once a week is enough. When the temperature is low in winter, it is best to stop fertilizing it.