Repotting is the process of transferring a plant from its current pot to a new one, usually to provide more space for growth or to refresh the soil. This is often necessary when a plant has outgrown its pot, indicated by roots growing out of the drainage holes or the plant becoming root-bound. During repotting, it's important to choose a pot that is slightly larger than the current one and to use fresh potting soil. This helps ensure that the plant has adequate nutrients and room to grow, promoting overall health and vitality.