Winter Care for Hibiscus Plants

Hibiscus plants, known for their vibrant flowers and tropical charm, require special care when grown outside their warm climate range, especially during winter. These plants are hardy to USDA growing zones 10-12, but in colder regions, overwintering them as indoor plants is often the best solution.

Outside of warm zones, hibiscus plants need extra attention to survive the winter. Feeding should be done during periods of more active growth, such as early spring and summer. However, during winter, watering should be reduced to prevent root rot and/or fungal disease.

When it comes to indoor care, frequent misting can help maintain proper humidity levels. It's also beneficial to gradually introduce the hibiscus plant to increased light and other outdoor environmental factors before moving it outdoors.

Proper humidity levels can be maintained by situating the potted hibiscus near a bright, sunny window. However, it's important to keep the plant away from cold drafts and direct exposure to heating vents.

Pruning the hibiscus plant is suggested before the frost arrives to maintain a more compact size and shape. Pruning may also be required while the plant is indoors during winter. Hibiscus pruning should be done carefully to ensure a strong spring regrowth.

Fertiliser should be reduced throughout winter for hibiscus plants. Indoor temperatures for hibiscus plants should not dip below 60 F (15 C). Plants should never be allowed to dry completely between waterings during winter.

It's important to note that hibiscus plants are perennial, meaning they can survive for multiple years. However, when all the plant's leaves have fallen off and its branches are pliable, the hibiscus plant has gone into full dormancy.

Overwintering tropical hibiscus as an indoor plant is often the best solution in cold regions. To do this, bring the plant indoors before temperatures drop below 10–15°C, place it in a bright, frost-free location, reduce watering to avoid waterlogging, and prune it to keep it compact. Hibiscus cannot tolerate frost, so timely indoor relocation is essential.

In conclusion, with the right care and attention, hibiscus plants can thrive even in colder climates during winter. By following these guidelines, you can help ensure your hibiscus plant survives the winter and continues to bloom beautifully in the spring.