Answer: Hibiscus are tropical plants, so you'll need to bring the plant indoors for the winter. They cannot withstand a frost. During its time outdoors in the sunshine, keep it well-watered, and fertilize regularly. When you bring it indoors, place it in a sunny, or at least bright, spot, and cut back on the fertilizer and water--how much water the plant will need depends on how warm and dry your house is. Don't let it dry out, though. It doesn't need to go through a dormant period like some plants. Once the weather warms up again next spring, acclimate the plant to the outdoors by placing it in a protected spot for a few hours at a time every day for a week or two. Increase water and fertilizer rates.
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