Overwintering Tropical vs. Hardy Hibiscus in Missouri

If you're in southwest Missouri (Zone 6b) and have a hibiscus that's been growing in the ground, the first step is identifying which type you have—tropical or hardy—because their winter needs are completely different.

Tropical Hibiscus (Hibiscus rosa-sinensis)

• Glossy leaves, long prominent stamens, flowers in vivid reds, yellows, oranges, pinks.
• Not cold-hardy. Must be dug up, potted, and brought indoors before frost.
• Cut back to 12–18 inches, pot in a container with drainage, using well-draining soil.
• Place in a bright south- or east-facing window. Water sparingly (once a week), no fertilizer.
• Expect leaf drop and a ratty look—that's semi-dormancy.
• After last frost (mid-April), harden off in shade for 10 days, then move to full sun. Resume feeding with balanced 10-10-10 fertilizer.

Hardy Hibiscus (Hibiscus moscheutos / Rose of Sharon)

• Duller, often lobed leaves; flowers typically white, pink, or red with a contrasting eye.
• Root-hardy to Zone 5. Can stay in the ground.
• After frost kills top growth, cut stems to 4–6 inches above ground.
• Mulch heavily (6–8 inches of straw or shredded leaves) over the crown.
• New shoots emerge from the base in late spring.

The Mystery Second Plant

If the other plant is also tropical, treat it the same way. If you can identify it (leaf shape, flower, growth habit), I can give specific advice.

Key takeaway: Don't leave a tropical hibiscus in the ground in Missouri—it won't survive. Dig, pot, and bring it in.