🌿 How to Protect Tropical Hibiscus from Freezing Temperatures on the Texas Gulf Coast
Question from Joe in Livingston:
What’s the best way to save my 5–6 foot hibiscus plants through the winter? I’ve heard some people move them into containers and others just cut them back and cover them with mulch. What’s best for our area?
Answer from Todd Farber, Aggie Horticulturist:
Great question, Joe — and one I get every year once the Gulf Coast’s first cold front hits!
From your photo, you have a tropical hibiscus (Hibiscus rosa-sinensis) — not a hardy or perennial type. The large red blooms and glossy dark green leaves give it away. Common cultivars with that look include ‘President’ and ‘Brilliant Red.’
Tropical hibiscus are heat lovers. They thrive in our long Houston-area summers but can’t handle a hard freeze. Once the temperature dips below 40°F, it’s time to prepare.
✅ Two Good Ways to Protect Tropical Hibiscus in Winter
1. Container Method
If your hibiscus isn’t too large, dig it up and place it in a large pot before the first freeze.
Keep it near a bright indoor window and water lightly through winter. Don’t overwater — the plant will rest until spring.
When night temperatures stay above 55°F again, move it back outdoors.
2. Mulch Method
If the plant is already large and established, cut it back to about 8–10 inches.
Pile 6–8 inches of mulch around the base to insulate the roots.
When temperatures drop into the 30s, cover the top with frost cloth, a breathable blanket, or an old sheet — never plastic.
If the winter is mild, it will often sprout again from the base once spring warmth returns.
🌸 Pro Tip
After a freeze, wait until late March to prune any dead wood. Many hibiscus look lifeless in February but surprise you with new growth once nights warm up.
🌿 Summary
Tropical hibiscus bring vibrant color to Gulf Coast gardens, but they need help surviving winter. Whether you move them indoors or mulch and cover outdoors, protection from cold winds and frost makes all the difference.
Free local garden advice from Todd Farber
Aggie Horticulturist & Expert Landscaper
AskGardenGuy.com
