Starter plant of Hibiscus Jazzberry Jam 5 to 10 inches. Mature will reach 4 to 5 feet tall and wide. The Blooms reach 9 inches or more across from midsummer into autumn, shades of magenta improve in number and size as the shrub matures. The growing and flowering season may be a bit shorter in the colder climates. Works great for a focal point of any sunny garden! Can be put in a large container is tolerant of heat and humidity, and left alone by most pests and diseases. Zones 4 to 9.