Winterizing Tropical vs. Hardy Hibiscus in Alabama

Alabama gardeners often confuse tropical (Hibiscus rosa-sinensis) and hardy (Hibiscus moscheutos) hibiscus. Their winter needs are completely different.

Tropical Hibiscus (Glossy Leaves, Colors Include Yellow/Orange)

• Not winter-hardy anywhere in Alabama (Zones 7–8).
• Must be dug, potted, and moved indoors before frost.
• Keep in bright, cool room (13–18 °C / 55–65 °F); water sparingly.
• Expect leaf drop; reduce fertilizing until spring.
• Return outdoors after last frost, acclimate gradually.

Hardy Hibiscus (Dull Green Leaves, Huge Flat Flowers)

• Fully hardy to Zone 5; no protection needed in Alabama.
• Cut stems to ground after frost kills top growth.
• Mulch crown lightly (5 cm) if desired.
• Emerges late (May); be patient.

How to Tell Them Apart

If your plants have 5-cm woody stems, they’re likely tropical and must come indoors. Hardy types die to the ground each winter.