Hibiscus syriacus, (high-BISS-kuss seer-ee-AY-kuss) sometimes called rose of sharon or shrub althaea (also althea), is a member of the mallow (Malvaceae) family, and grows into a large shrub or small, multi-trunked tree that varies in size from 8 to 12 feet tall and 4 to 10 feet wide. More @Wikipedia
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