Heartthrob’ boasts huge 8-10″ wide blood red flowers have rounded, overlapping petals with a slightly ruffled edge and contrasting bright yellow anthers in the center. Enjoy a taste of the tropics with this super hardy perennial Hibiscus! ‘Heartthrob’ has a rounded, compact, and well-behaved form and so easy to grow that is no work and all pleasure! Blooms mid to late summer.