Is It Althea? Identifying Double-Flowered Hibiscus syriacus

"Althea" is a traditional common name for Hibiscus syriacus (Rose of Sharon). Your friend's plant in Houston—with smaller hibiscus-like leaves and double, carnation-like pink and purplish flowers—is a hybrid cultivar of H. syriacus.

Why It Looks Different

• Modern breeding has produced dozens of double and semi-double cultivars (e.g., 'Ardens', 'Collie Mullens', 'Blushing Bride').
• These have many more petals than the wild-type 5-petal species.
• Leaf size and texture vary slightly among cultivars.

Botanical Connections

Hibiscus syriacus belongs to the mallow family (Malvaceae), making it a cousin to okra, cotton, and tropical hibiscus. All share the characteristic columnar stamens.

Propagation

Cuttings root easily in summer. Take 4–6 inch softwood stems, dip in rooting hormone, and stick in moist perlite/peat under a humidity dome.

You're growing a classic Southern passalong plant with upgraded flowers—enjoy the heirloom beauty!