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Treat root rot by removing the plant from the soil and washing the roots down with water. Then take a clean pair of shears or scissors and trim away any remaining affected roots. You may have to remove a significant amount of the root system so it will also help to prune back a 1/3 of the leaves, which gives the plant a better chance to regrow roots. If possible, dip the remaining healthy roots in a fungicide solution. After treating root rot, replant in a well-draining area.
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