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Can Tropical Hibiscus Survive a New Jersey Winter? No—Here's What to Do

Hardiness Zone Mismatch

Tropical hibiscus (Hibiscus rosa-sinensis) is hardy only to USDA zones 8-9. Northern New Jersey is zone 6, where winter temperatures regularly drop well below freezing. Wrapping in burlap will not provide enough protection.

Options for Your Plants

Move containers indoors before frost. Place in a bright, cool room (55-65°F) and water sparingly.
Treat as annuals if indoor space is limited. Enjoy them for the season and replace next year.
Consider hardy hibiscus (Hibiscus moscheutos) for permanent landscape planting; it dies back to the ground each winter but returns in spring.

Don't Risk It

Leaving tropical hibiscus in the ground over winter in zone 6 will almost certainly kill them. Plan ahead for overwintering or replacement.

Trees: White Fuzz on Banana Tree Stalks: Mealybugs, Not Mold—Neem Oil and Winter Bare-Root Storage; Overwintering Bare-Root Chestnut Trees in Pots Until Spring; Saving and Starting Hibiscus and Cherry Tomato Seeds; Transplanting Trees and Shrubs: Timing and Technique; Italian Cypress Screening in Stockton, CA: Disease Risk vs. Reward; Cedar Needle Drop and Cedar-Quince Rust: Normal vs. Action Needed; Tree Staking Duration: One Season Maximum; Growing Chestnut Seedlings in Wisconsin; How to Remove Young Sassafras Trees from Your Yard; Reviving Indoor Hibiscus Trees with Leaf Drop in Wisconsin

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