About: Hibiscus m. Cranberry Punch: Hardy Hibiscus. Finally, a compact hardy hibiscus that’s perfect for the modern garden. Dark red flowers bloom all summer above a plant that matures at 2-3 feet high and wide.Note: Hardy Hibiscus will die back to the ground every winter and emerge from the ground in mid to late spring. Remove old canes to the ground in mid winter. Zones 4 to 10.