If you don't live in a tropical climate, you'll need to bring your Pink Hibiscus indoors when cool temperatures begin. This is a smart move, but only if you can continue to provide your plant with the sunlight that it needs to survive. As long as it gets two to three hours of sun per day in the winter, it should continue to grow indoors. Keep in mind that your plant won't need as much water in the winter. Still, it's important to keep an eye on your humidity levels. Arid indoor heat can be damaging to a Pink Hibiscus, so you may need to add a humidifier to keep it comfortable. Shallow waterings and light water mists can also help. While it might be exciting, go ahead and remove any buds that you see forming on your plant over the winter. Once the weather warms up, you can cut the plant back and place it back outdoors once nighttime temperatures stay above 50 degrees Fahrenheit.