Hibiscus syriacus 'Marina' has large deep blue flowers with reddish purple throats and large creamy white staminal columns. This is a deciduous shrub that grows 6 -9 feet tall and blooms from mid summer to fall. It is hardy in zones 5 – 9. Hibiscus syriacus 'Marina' is commonly sold under the trademark name BLUE SATIN®. When the species was named syriacus, it was thought to have originated in Syria, but it is actually native to China and India. Hibiscus syriacus is the national flower of Korea.